What is the difference between [M][J][N] in the reference?

The author comes first, the book title is in the middle, and the year is last. ?

M——Monographs (including historical and historical treatises in ancient books)

N——Newspaper articles

J——Journal articles

D——Dissertation

R——Research report

S——Standard

P——Patent

A ——Extracted documents in monographs and proceedings

Z——Other unspecified document types

Electronic document types are identified by double letters:

DB— —Database

CP—Computer Program

EB—Electronic Bulletin

Indicate the carrier type in the reference identification:

DB/OL——Online database

DB/MT——Tape database

M/CD——Compact disc book

CP/DK—— Disk Software

J/OL - Online Journal

EB/OL - Online Electronic Bulletin

A few key points of the author initials rules are excerpted as follows:

1. Name abbreviations only abbreviate the first name and not the surname;

2. Regardless of whether people from the East or the West, the writing form of abbreviated names is the surname first and the first name last;

3. In the name of the magazine author, the last name must be in all capital letters;

4. Omit all abbreviations