APA aipamena

George, F. H. (1977). Cybernetics and the Environment. Paul Elek.

Chicago Style aipamena

George, F. H. Cybernetics and the Environment. London: Paul Elek, 1977.

MLA aipamena

George, F. H. Cybernetics and the Environment. Paul Elek, 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.