Discovery Channel (Firm) & Image Entertainment. (2009). Nature of sex: Discovery Channel. Image Entertainment.
Čikaški stil citiranja (17. izdanje)Discovery Channel (Firm) i Image Entertainment. Nature of Sex: Discovery Channel. Chatsworth, CA: Image Entertainment, 2009.
MLA način citiranja (9. izdanje)Discovery Channel (Firm) i Image Entertainment. Nature of Sex: Discovery Channel. Image Entertainment, 2009.
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