Cita APA

Cunningham, W. P., Cunningham, M. A., & Saigo, B. W. (2005). Environmental science: A global concern (8th ed.). New York: McGraw-Hill.

Chicago Style Citation

Cunningham, William P., Mary Ann Cunningham, i Barbara Woodworth Saigo. Environmental Science: A Global Concern. 8th ed. New York: McGraw-Hill, 2005.

Cita MLA

Cunningham, William P., Mary Ann Cunningham, i Barbara Woodworth Saigo. Environmental Science: A Global Concern. 8th ed. New York: McGraw-Hill, 2005.