Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Hower, Ralph Merle","The history of an advertising agency : N. W. Ayer & Son at work, 1869-1949",Rev. ed,In-house reproduction,1949,Harvard studies in business history,,,,https://cir.nii.ac.jp/crid/1130282272280745216