Sheldon, B. (1994). SPERM COMPETITION IN THE CHAFFINCH - THE ROLE OF THE FEMALE.
Chicago-čujuhus (17. p.)Sheldon, B. SPERM COMPETITION IN THE CHAFFINCH - THE ROLE OF THE FEMALE. 1994.
MLA-čujuhus (9. p.)Sheldon, B. SPERM COMPETITION IN THE CHAFFINCH - THE ROLE OF THE FEMALE. 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.