APA aipamena

(2009). Environment 09/10. Boston: McGraw-Hill Higher Education.

Chicago Style aipamena

Environment 09/10. Boston: McGraw-Hill Higher Education, 2009.

MLA aipamena

Environment 09/10. Boston: McGraw-Hill Higher Education, 2009.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.