APA (7e ed.) Bronvermelding

Não informado. (1969). Journal of systems management. Association for Systems Management.

Chicago (17e ed.) Bronvermelding

Não informado. Journal of Systems Management. Cleveland, Ohio: Association for Systems Management, 1969.

MLA (8e ed.) Bronvermelding

Não informado. Journal of Systems Management. Association for Systems Management, 1969.

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