McGeary, D. (1998). Earth revealed (3rd ed.). Wm. C. Brown Publishers.
Čikaški stil citiranja (17. izdanje)McGeary, David. Earth Revealed. 3rd ed. Dubuque, IA: Wm. C. Brown Publishers, 1998.
MLA način citiranja (9. izdanje)McGeary, David. Earth Revealed. 3rd ed. Wm. C. Brown Publishers, 1998.
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