APA (7th ed.) Citation

Callahan, J. R. (2000). Recent advances and issues in environmental science. Oryx Press.

Chicago Style (17th ed.) Citation

Callahan, Joan R. Recent Advances and Issues in Environmental Science. Phoenix: Oryx Press, 2000.

MLA (9th ed.) Citation

Callahan, Joan R. Recent Advances and Issues in Environmental Science. Oryx Press, 2000.