Essentials of geology
MLA
Marshak, Stephen. Essentials of Geology. 2nd ed. New York: W.W. Norton, 2007
APA, 7th edition
Marshak, S. (2007). Essentials of geology. 2nd ed. New York: W.W. Norton
Chicago, 17th edition
Marshak, Stephen. Essentials of geology. 2nd ed. New York: W.W. Norton, 2007