Cita APA (7a ed.)

Cunningham, W. P. C. a. M. A. Principles of environmental science inquiry and applications. McGraw-Hill.

Cita Chicago Style (17a ed.)

Cunningham, William P. Cunningham and Mary Ann. Principles of Environmental Science Inquiry and Applications. McGraw-Hill.

Cita MLA (8a ed.)

Cunningham, William P. Cunningham and Mary Ann. Principles of Environmental Science Inquiry and Applications. McGraw-Hill.