According to GB3469-83 "File Types and File Carrier Codes", reference file types and file types are identified by a single letter:
Monograph m; Newspaper n; Journal j; Patent document p; Compilation g; Ancient books o; Technical standards;
Dissertation d; Scientific and technological report; Reference tool k; Search tool w; File b; Tape a;
Chart q; Record l; Product sample x; Video tape v; Meeting minutes; Chinese translation test;
Music score I; Movie y; Manuscript h; Microfilm u; Slide z; Miniature flat film f; Other e.
Extended data:
Types of references: monographs [M], essays [C], newspaper articles [N], journal articles [J], dissertations [D], reports [R], standards [S], patents [P], and precipitated documents in the collection of papers [A].
Types of electronic documents: database [DB], computer [CP], electronic bulletin [EB].
The carrier types of electronic literature: Internet [OL], CD [CD], magnetic tape [MT] and disk [DK].
A. monographs, papers, papers and reports:
Principal responsible person. Title of the document [Document Type ID]. Place of publication: publisher, year of publication. Page number (optional).
Liu Guojun, Chen Shaoye. Library catalogue [M]. Beijing: Higher Education Press, 1957.438+05- 18.
B. Journal articles:
Principal responsible person. File title [J]. Publication name, year, volume (issue): page number.
He lingxiu Read the history of Nanming [J]. Historical Studies of China,1998:167-173.
Ou Jianping, Song Tietao, et al. Research progress in application of passive energy dissipation system [J]. Earth Gaga Project,1997,38 (3): 358-361.
Baidu Encyclopedia-References