Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Maitland, Sheridan T. and Fisher, Dorothy Anne and United States. Agricultural Marketing Service",The hired farm working force of 1957,,"Agricultural Marketing Service, U.S. Dept. of Agriculture",1959,Agriculture information bulletin,,,,https://cir.nii.ac.jp/crid/1130000794194181632