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
"Gilbert, Elon H. (Elon Hamilton) and Norman, David W. and Winch, Fred E. (Fred Everett)",Farming systems research : a critical appraisal,,"Dept. of Agricultural Economics, Michigan State University",1980,MSU rural development working papers,,,,https://cir.nii.ac.jp/crid/1130000796369381120