APA-referens (7:e uppl.)

Não informado. (1977). Informatics Abstracts. All-Union Institute of Scientific and Technical Information.

Chicago-referens (17:e uppl.)

Não informado. Informatics Abstracts. Moscow: All-Union Institute of Scientific and Technical Information, 1977.

MLA-referens (8:e uppl.)

Não informado. Informatics Abstracts. All-Union Institute of Scientific and Technical Information, 1977.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.