Cita APA

P.Cunningham William, & Ann cunningham Mary. (2006). Principles of Environmental Science: Inquiry and Applications (Tái bản lần thứ 3.). America: MC Graw Hill.

Citación estilo Chicago

P.Cunningham William, y Ann cunningham Mary. Principles of Environmental Science: Inquiry and Applications. Tái bản lần thứ 3. America: MC Graw Hill, 2006.

Cita MLA

P.Cunningham William, y Ann cunningham Mary. Principles of Environmental Science: Inquiry and Applications. Tái bản lần thứ 3. America: MC Graw Hill, 2006.

Precaución: Estas citas no son 100% exactas.