Cita APA

Cunningham, W. P. 2., Cunningham, M. A. 2., & Saigo, B. W. 3. (2005). Environmental science: A global concern. New York : McGraw-Hill.

Citación estilo Chicago

Cunningham, William P. 265156, Mary Ann 229929 Cunningham, and Barbara Woodworth 330138 Saigo. Environmental Science: A Global Concern. New York : McGraw-Hill, 2005.

Cita MLA

Cunningham, William P. 265156, et al. Environmental Science: A Global Concern. New York : McGraw-Hill, 2005.