@book{bhlitem50143, title = {Ptitsy gansuiskago puteshestviia G. N. Potanina 1884-1887 : materialy po ornitologii Kitaia, glavnym obrazom iuzhnoi chasti provintsii Gansy }, copyright = {Public domain. The BHL considers that this work is no longer under copyright protection.}, url = {https://www.biodiversitylibrary.org/item/50143}, note = {https://www.biodiversitylibrary.org/bibliography/14345}, publisher = {Sanktpeterburg, Tip. I. Akademii nauk, 1891}, author = {Berezovskiĭ, M. (Mikhail Mikhailovich), and Bīanki, V. L. (Valentin Lʹvovich), and Potanin, G. N.}, year = {}, pages = {220}, keywords = {Birds|China|Gansu Sheng|}, }