Παραπομπή APA

Skyttner, L. (1996). General systems theory: An introduction. Macmillan Press Ltd.

Παραπομπή Chicago Style

Skyttner, Lars. General Systems Theory: An Introduction. London: Macmillan Press Ltd, 1996.

Παραπομπή MLA

Skyttner, Lars. General Systems Theory: An Introduction. Macmillan Press Ltd, 1996.