@book{bhlitem62320, title = {Elements of agriculture }, copyright = {NOT_IN_COPYRIGHT}, url = {https://www.biodiversitylibrary.org/item/62320}, note = {https://www.biodiversitylibrary.org/bibliography/21873}, publisher = {New York, Macmillan, 1913, c1909}, author = {Warren, George F. (George Frederick),}, year = {}, pages = {500}, keywords = {Agriculture|}, }