@misc{Kruuk_H._Surplus_1972, author={Kruuk, H.}, volume={166}, copyright={Prawa zastrzeżone - dostęp ograniczony}, journal={Journal of Zoology, Lond.}, address={London}, howpublished={online}, year={1972}, publisher={Wiley-Blackwell}, language={eng}, type={Tekst}, title={Surplus killing by carnivores}, keywords={Carnivores, Crocuta crocuta, Predation, Vulpes vulpes}, }