Cita APA (7th ed.)

CUNNINGHAM, W. P. (2004). Principles of environmental science: Inquiry and applications. McGraw-Hill.

Cita Chicago (17th ed.)

CUNNINGHAM, William P. Principles of Environmental Science: Inquiry and Applications. McGraw-Hill, 2004.

Cita MLA (9th ed.)

CUNNINGHAM, William P. Principles of Environmental Science: Inquiry and Applications. McGraw-Hill, 2004.

Atenció: Aquestes cites poden no estar 100% correctes.