1. First, you need to find the literature you want to quote. You can search related keywords in Wanfang database.
2. After finding the literature, you need to record the basic information of the literature, including the author, title, publication year, journal name, volume number, issue number and page number. This information will play a key role when you quote literature.
3. When citing documents in papers, you need to quote them in a certain format. Generally speaking, APA, MLA and Chicago are the most commonly used citation formats. You need to choose the appropriate citation format according to your topic or the requirements of your tutor.
When quoting literature, it is necessary to quote the information of the literature accurately. For example, if you quote a journal article, you need to indicate the author's name, article title, publication year, journal name, volume number, issue number and page number in brackets. If you are quoting a book, you need to indicate the author's name, title, publication year and publishing house in brackets.
In the list of references at the end of the article, you need to list all the references you cited in a certain format. This format usually includes the author's name, title or article title, year of publication, name of publishing house or periodical, volume number, issue number and page number.
Finally, you need to make sure that your quotation is accurate. If you are not sure how to cite a document, you can consult the relevant citation guide or ask your tutor or librarian for help.