@misc{Lang_Hrebert_(1879–1957)_Zoo_[b.d.],
 author={Lang, Hrebert (1879–1957) and Haagner, Alwin (1880–1962) and Giovanetti, Albert Harcourt (1890–1918) and Bigalke, R.},
 editor={Rząśnicki, Adolf (1884–1953). Kolekcjoner},
 copyright={Rights Reserved - Restricted Access},
 howpublished={online},
 year={[b.d.]},
 language={pol},
 title={Zoo Pretoria},
 keywords={mountain zebra, hybrids, mammals, horse family, Mammalia, Equidae, photograps of animals, breeding centers, Chapman's zebra, zebras, zoo, zoo animals, Nordtransvaal, Equus zebra zebra, Equus burchelli},
}