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 United States. Bureau of the Census,"Characteristics of teachers : national and regional data on age, earnings, education, marital status, race, etc., for teachers, by level of school",,"U.S. Dept. of Commerce, Bureau of the Census : U.S. G.P.O.",1964,"U.S. census of population, 1960",,,,https://cir.nii.ac.jp/crid/1130282273373041408