Johnson, G. B. (2010). Essentials of the living world (Third edition.). McGraw-Hill.
Chicago Style (17. basım) AtıfJohnson, George B. Essentials of the Living World. Third edition. Dubuque, IA: McGraw-Hill, 2010.
MLA (9th ed.) AtıfJohnson, George B. Essentials of the Living World. Third edition. McGraw-Hill, 2010.
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