APA aipamena

Urban, G. R. (1972). Can we survive our future?: A symposium. London: The Bodley Head.

Chicago Style aipamena

Urban, G. R. Can We Survive Our Future?: A Symposium. London: The Bodley Head, 1972.

MLA aipamena

Urban, G. R. Can We Survive Our Future?: A Symposium. London: The Bodley Head, 1972.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.