Grotzinger, J., & ...[et al.]. (2007). Understanding earth (5th ed.). W.H. Freeman and Company.
Čikaški stil citiranjaGrotzinger, John, i ...[et al.]. Understanding Earth. 5th ed. New York: W.H. Freeman and Company, 2007.
MLA način citiranjaGrotzinger, John, i ...[et al.]. Understanding Earth. 5th ed. W.H. Freeman and Company, 2007.
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