APA aipamena

Richard Wright. "EnvironmentalScience-TowardsaSustainableFuture,9thed.". PHI LEARNING PVT LTD.

Chicago Style aipamena

Richard Wright. "EnvironmentalScience-TowardsaSustainableFuture,9thed.". PHI LEARNING PVT LTD.

MLA aipamena

Richard Wright. "EnvironmentalScience-TowardsaSustainableFuture,9thed.". PHI LEARNING PVT LTD.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.