Cita APA (7th ed.)

Cunningham, W. P. (2004). Principles of Environmental Science: Inquiry and Applicaions. McGraw-Hill Higher Education, Boston.

Cita Chicago (17th ed.)

Cunningham, William P. Principles of Environmental Science: Inquiry and Applicaions. New York: McGraw-Hill Higher Education, Boston, 2004.

Cita MLA (9th ed.)

Cunningham, William P. Principles of Environmental Science: Inquiry and Applicaions. McGraw-Hill Higher Education, Boston, 2004.

Atenció: Aquestes cites poden no estar 100% correctes.