APA aipamena

Lean, G. (1990). Atlas of the environment. NewYork, US: Prentice Hall Press.

Chicago Style aipamena

Lean, Geoffrey. Atlas of the Environment. NewYork, US: Prentice Hall Press, 1990.

MLA aipamena

Lean, Geoffrey. Atlas of the Environment. NewYork, US: Prentice Hall Press, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.