@book{bhlpg31092952, title = {Historia naturalis bulgarica }, volume = {v.7 (1997)}, url = {https://www.biodiversitylibrary.org/page/31092952}, publisher = {Bulgarska akademiia na naukite}, author = {Bŭlgarska akademii︠a︡ na naukite. }, year = {1997}, pages = {Page 23}, } @book{bhlpg31092956, title = {Historia naturalis bulgarica }, volume = {v.7 (1997)}, url = {https://www.biodiversitylibrary.org/page/31092956}, publisher = {Bulgarska akademiia na naukite}, author = {Bŭlgarska akademii︠a︡ na naukite. }, year = {1997}, pages = {Page 19}, } @book{bhlpg31092948, title = {Historia naturalis bulgarica }, volume = {v.7 (1997)}, url = {https://www.biodiversitylibrary.org/page/31092948}, publisher = {Bulgarska akademiia na naukite}, author = {Bŭlgarska akademii︠a︡ na naukite. }, year = {1997}, pages = {Page 27}, } @book{bhlpg31092951, title = {Historia naturalis bulgarica }, volume = {v.7 (1997)}, url = {https://www.biodiversitylibrary.org/page/31092951}, publisher = {Bulgarska akademiia na naukite}, author = {Bŭlgarska akademii︠a︡ na naukite. }, year = {1997}, pages = {Page 24}, } @book{bhlpg31092949, title = {Historia naturalis bulgarica }, volume = {v.7 (1997)}, url = {https://www.biodiversitylibrary.org/page/31092949}, publisher = {Bulgarska akademiia na naukite}, author = {Bŭlgarska akademii︠a︡ na naukite. }, year = {1997}, pages = {Page 26}, } @book{bhlpg31092950, title = {Historia naturalis bulgarica }, volume = {v.7 (1997)}, url = {https://www.biodiversitylibrary.org/page/31092950}, publisher = {Bulgarska akademiia na naukite}, author = {Bŭlgarska akademii︠a︡ na naukite. }, year = {1997}, pages = {Page 25}, }