@book{bhlitem50419, title = {Handbuch für Vogelliebhaber, -Züchter und -Händler }, copyright = {Public domain. The BHL considers that this work is no longer under copyright protection.}, url = {https://www.biodiversitylibrary.org/item/50419}, note = {https://www.biodiversitylibrary.org/bibliography/14477}, publisher = {Hannover, Carl Rümpler, 1878}, author = {Russ, Karl,}, year = {}, pages = {500}, keywords = {Cage birds|}, }