Parrots (Order Psittaciformes) in the collections of the National Natural History Museum — Sofia
Boev, Zlatozar, 1955-
Article
1990
Historia naturalis bulgarica
2
3--6
BioStor
Bulgarian
Sofiia, Bulgarska akademiia na naukite, c1989-
BioStor: https://biostor.org/reference/192143
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