Sheldon, B., & Birkhead, T. (1994). REPRODUCTIVE ANATOMY OF THE CHAFFINCH IN RELATION TO SPERM COMPETITION.
Čikaški stil citiranja (17. izdanje)Sheldon, B., i T. Birkhead. REPRODUCTIVE ANATOMY OF THE CHAFFINCH IN RELATION TO SPERM COMPETITION. 1994.
MLA način citiranja (9. izdanje)Sheldon, B., i T. Birkhead. REPRODUCTIVE ANATOMY OF THE CHAFFINCH IN RELATION TO SPERM COMPETITION. 1994.
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