@book{bhlitem44682, title = {Illinois biological monographs }, volume = {v.6:no.1 (1921)}, copyright = {NOT_IN_COPYRIGHT}, url = {https://www.biodiversitylibrary.org/item/44682}, note = {https://www.biodiversitylibrary.org/bibliography/3937}, publisher = {Urbana, Univ. of Illinois Press, }, author = {University of Illinois (Urbana-Champaign campus) and University of Illinois at Urbana-Champaign.}, year = {1921}, pages = {120}, keywords = {Biologie|Biology|Periodical|Periodicals}, }