@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},
}