APA aipamena

Smil, V. (1993). Global Ecology Environmental Change And Social Flexibility Valclav Smill. Routledge.

Chicago Style aipamena

Smil, Vacent. Global Ecology Environmental Change And Social Flexibility Valclav Smill. Routledge, 1993.

MLA aipamena

Smil, Vacent. Global Ecology Environmental Change And Social Flexibility Valclav Smill. Routledge, 1993.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.