Källander, H. (1983). Aspects of the breeding biology, migratory movements, winter survival, and population fluctuations in the Great Tit, Parus major, and the Blue Tit, P. caeruleus. Lunds universitet.
Čikaški stil citiranja (17. izdanje)Källander, Hans. Aspects of the Breeding Biology, Migratory Movements, Winter Survival, and Population Fluctuations in the Great Tit, Parus Major, and the Blue Tit, P. Caeruleus. Sweden: Lunds universitet, 1983.
MLA način citiranja (8. izdanje)Källander, Hans. Aspects of the Breeding Biology, Migratory Movements, Winter Survival, and Population Fluctuations in the Great Tit, Parus Major, and the Blue Tit, P. Caeruleus. Lunds universitet, 1983.
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