APA ציטוט

Freedman, B. (2001). Environmental science: A Canadian perspective. Prentice Hall.

Chicago Style (17th ed.) Citation

Freedman, Bill. Environmental Science: A Canadian Perspective. Toronto: Prentice Hall, 2001.

ציטוט MLA

Freedman, Bill. Environmental Science: A Canadian Perspective. Prentice Hall, 2001.