APA (7e ed.) Bronvermelding

Não informado. General Systems Bulletin. Society for General Systems Research.

Chicago (17e ed.) Bronvermelding

Não informado. General Systems Bulletin. Washington: Society for General Systems Research.

MLA (8e ed.) Bronvermelding

Não informado. General Systems Bulletin. Society for General Systems Research.

Let op: Deze citaties zijn niet altijd 100% accuraat.