Columbia subject headings:
Hays, Will H. (Will Harrison), 1879-1954.
Motion Picture Producers and Distributors of America.
Harvard subject headings:
Hays, Will H. (Will Harrison), 1879-1954.
Motion Picture Producers and Distributors of America
Princeton subject headings:
Hays, Will H. (Will Harrison), 1879-1954.
Motion Picture Producers and Distributors of America.