Cita APA

Cunninggham, W. P. (2003). Environmental science: A global concern. WCB/McGraw-Hill.

Chicago Style Citation

Cunninggham, William P. Environmental Science: A Global Concern. WCB/McGraw-Hill, 2003.

Cita MLA

Cunninggham, William P. Environmental Science: A Global Concern. WCB/McGraw-Hill, 2003.

Atenció: Aquestes cites poden no estar 100% correctes.