Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Kahn, Gerald and Williams, Joel","Current expenditures per pupil in public school systems: urban school systems, 1957-58",,"U.S. Department of Health, Education, and Welfare",1959,Circular,,,,https://cir.nii.ac.jp/crid/1130282270827067264