APA aipamena

Cunningham, W. P., & Saigo, B. W. (1997). Environmental Science: A Global Concern. Boston: McGraw-Hill.

Chicago Style aipamena

Cunningham, William P., và Barbara Woodworth Saigo. Environmental Science: A Global Concern. Boston: McGraw-Hill, 1997.

MLA aipamena

Cunningham, William P., và Barbara Woodworth Saigo. Environmental Science: A Global Concern. Boston: McGraw-Hill, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.