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 "Pettet, Zellmer Roswell and United States. Bureau of the Census","Land in drainage enterprises, capital invested and drainage works : statistics for counties with state and United States, summaries and a synopsis of drainage laws",,U.S. Govt. Print. Off.,1942,"Sixteenth census of the United States, 1940",,,,https://cir.nii.ac.jp/crid/1130000796572554496