Grotzinger, J. P. (2007). Understanding Earth (5th ed.). W.H. Freeman.
Chicago Style (17th ed.) CitationGrotzinger, John P. Understanding Earth. 5th ed. New York: W.H. Freeman, 2007.
MLA (9th ed.) CitationGrotzinger, John P. Understanding Earth. 5th ed. W.H. Freeman, 2007.
Warning: These citations may not always be 100% accurate.