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. Boston: McGraw-Hill, 2004.

Cita MLA (9th ed.)

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