M: Monographs (including historical records in ancient books)?

C: Composition?

N: newspaper articles?

J: Journal articles?

Doctoral thesis?

R: research report?

S: standard?

P: patent?

A: Literature precipitated in monographs and papers?

Z: Other unspecified literary types?

The type of electronic document is identified by two letters:?

DB: Database?

CP: Computer program?

EB: Electronic bulletin?

For non-paper carrier electronic documents, the carrier type should be indicated in the reference mark:?

DB/OL: online database?

DB/MT: tape database?

M/CD: CD book?

CP/DK: Disk software?

J/OL: weblog?

EB/OL: online electronic bulletin

Brief introduction of document type identification in detail

File type identification is a symbol indicating various types of reference files. The description of references should comply with GB 77 14-87 "Rules for the Description of References after Articles" and "Data Specification for Retrieval and Evaluation of Academic Journals in China (CD-ROM Edition)". The author of the paper should use the following document type identification codes to indicate the types and carrier types of various references cited by himself. According to GB 3469-83 "File Types and File Carrier Codes", common file types are identified with single letters, and electronic files are identified with double letters.

format

Periodical: author, title [J], title, year of publication, volume (issue): starting and ending page numbers.

Monograph: author. Title [M]. Version (first edition not recorded). Place of publication: publisher, year of publication: page number.

Prose collection: author, title, editor, prose collection [C]. Place of publication: publisher, year of publication: start and end pages.

Paper: author, title [D], preservation place, preservation unit and year.

Patent: title, country, patent document type, patent number and publication date.

Technical standard: name of numbering standard

Newspaper: the author. Title. Newspaper name. Publication date (version)

Scientific and technological report: author, title [R], storage place and year.

Electronic document: author. Title [Electronic document type identification/carrier type identification]. Literature source (publisher or available website), publication or update date/citation date (optional).

Precipitated documents in monographs and papers: author, title [a], editor (optional), title [c]. Place of publication: publisher, year of publication: start and end pages.

Other unspecified literary types: authors. Title [z]. Place of publication: publisher, year of publication: page number.

for instance

technology standard

Arsenic o1210-1982, Plastics-Determination of flammability of plastics by small sample contact flame method [S]

GB 24 10-80, experimental method for light transmittance and haze of transparent plastics [S]

newspaper

Chen Zhiping. The new trend of disaster reduction design research [n]. Science and Technology Daily,1997-12-12 (5)

report

China mechanical engineering society. Dense phase pneumatic conveying technology [R]. Beijing: 1996.

Electronic literature

Wan jinrou Abstract of Journal of China University (1983-1993) [DB/CD]. Beijing: China Encyclopedia Publishing House, 1996.

function

Classifying articles by content is convenient for literature statistics and periodical evaluation, determining the scope of literature retrieval and improving the applicability of retrieval results.

abstract

Document identification is a way to prove the source of documents and authors, which plays a vital role in document source and patent certificate. Fully understanding document recognition is the basis of writing documents.