Gerking, S. D. (1963). Man and the biological world: A laboratory manual (2rd ed.). Minesota: Burgess pub..
Čikaški stil citiranjaGerking, Shelby D. Man and the Biological World: A Laboratory Manual. 2rd ed. Minesota: Burgess pub., 1963.
MLA način citiranjaGerking, Shelby D. Man and the Biological World: A Laboratory Manual. 2rd ed. Minesota: Burgess pub., 1963.
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