APA Style

Botkin, D, B., Keller, E, A. (1995). Environmental Science: Earth as a Living Planet (Cet.1). New York: John Wiley & Sons Inc..

MLA Style

Botkin, Daniel, B.., Keller, Edward, A.. "Environmental Science: Earth as a Living Planet". Cet.1 New York: John Wiley & Sons Inc., 1995. Text.