1. [CDC catalog of motion pictures and filmstrips for professional and subprofessional groups, supp. 2a, Motion pictures released in fiscal year 1952; supp. 1b, Filmstrips released in fiscal year 19521. Bookmark Corporate/Agency Authors: Public Health Service and Federal Security Agency Publisher: Public Health Service Date: [1952.] SuDoc number: FS 3.60/2:M 85/supp.2a-2b