@misc{Byers_J._A._The_1999, author={Byers, J. A.}, volume={247}, copyright={Prawa zastrzeżone - dostęp ograniczony}, journal={Journal of Zoology, Lond.}, address={London}, howpublished={online}, year={1999}, publisher={Wiley-Blackwell}, language={eng}, type={Tekst}, title={The distribution of play behaviour among Australian marsupials}, keywords={Australian marsupials}, }