You need to add a serial number in front, which is the number of documents you cite. The format is: [number]. Note that [] is in English, don’t make it wrong. Write the main author. If it is an international/national standard, write the standard code name. Then put a dot, be careful not to make it a full stop. Next, write the name of the referenced document, and then write the type of your document. The format is: [type].
Format codes can be divided into: monograph [M], conference proceedings [C], newspaper article [N], journal article [J], and dissertation according to the type of reference material. [D], Report [R], Standard [S], Patent [P], Precipitated documents in the proceedings [A], Magazine [G]
Electronic document type: database [DB], computer [ CP], Electronic Bulletin [EB]
The carrier type of electronic documents: Internet [OL], optical disk [CD], magnetic tape [MT], disk [DK]