Duvall, F. P. (1983). The structure and ontogeny of corvine social play of the rook, Corvus frugilegus, L., and the hooded crow, Corvus corone cornix, L.
Chicago-Zitierstil (17. Ausg.)Duvall, Fern Park. The Structure and Ontogeny of Corvine Social Play of the Rook, Corvus Frugilegus, L., and the Hooded Crow, Corvus Corone Cornix, L. 1983.
MLA-Zitierstil (9. Ausg.)Duvall, Fern Park. The Structure and Ontogeny of Corvine Social Play of the Rook, Corvus Frugilegus, L., and the Hooded Crow, Corvus Corone Cornix, L. 1983.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.