@book{bhlitem16729, title = {Manual of conchology, structural and systematic : with illustrations of the species Second series Pulmonata}, volume = {ser.2:v.26 (1920-1921)}, copyright = {Public domain. The BHL considers that this work is no longer under copyright protection.}, url = {https://www.biodiversitylibrary.org/item/16729}, note = {https://www.biodiversitylibrary.org/bibliography/6534}, publisher = {Philadelphia, Published by the Author, 1885-1935}, author = {Tryon, George W., (George Washington), and Baker, H. Burrington (Horace Burrington), and Cooke, C. Montague (Charles Montague), and Hyatt, Alpheus, and Pilsbry, Henry Augustus,}, year = {1920}, pages = {332}, keywords = {Mollusks|Pictorial works|Pulmonata}, }