Catalog of Copyright Entries: Third Series: Volume 9: Parts 12–13, Number 1: Motion Pictures and Filmstrips, January–June 1955.
Catalog of Copyright Entries: Third Series: Volume ۹: Parts ۱۲–۱۳, Number ۱: Motion Pictures and Filmstrips, ژانویه–ژوئن ۱۹۵۵.