@book{bhlitem29076, title = {Classification of the animal kingdom }, copyright = {No known copyright restrictions as determined by scanning institution}, url = {https://www.biodiversitylibrary.org/item/29076}, note = {https://www.biodiversitylibrary.org/bibliography/6554}, publisher = {Carbondale, Ill, Southern Illinois University Press, [1963]}, author = {Blackwelder, Richard E. (Richard Eliot),}, year = {1963}, pages = {104}, keywords = {Classification|Zoology}, }