著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Selby, H. E. (Halbert Edgerton)","Farming business in the Gallatin Valley : a study of factors affecting the profits of irrigated farms from 1918 to 1922, with comparable data for 1913",,"University of Montana, Agricultural Experiment Station",1925,Bulletin,,,,https://cir.nii.ac.jp/crid/1130000793833278080