Duvall, F. P. (1983). The structure and ontogeny of corvine social play of the rook (corvus frugilegus, 1.) and the hooded crow (corvus corone cornix, 1.).
Chicago-Zitierstil (17. Ausg.)Duvall, Fern Park. The Structure and Ontogeny of Corvine Social Play of the Rook (corvus Frugilegus, 1.) and the Hooded Crow (corvus Corone Cornix, 1.). 1983.
MLA-Zitierstil (9. Ausg.)Duvall, Fern Park. The Structure and Ontogeny of Corvine Social Play of the Rook (corvus Frugilegus, 1.) and the Hooded Crow (corvus Corone Cornix, 1.). 1983.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.