The Human relations series of films.
APA Citation
Progressive Education Association (U.S.). Commission on Human Relaltions. (1939). The Human relations series of films. New York: Commission on human relations, Progressive education association.
MLA Citation
Progressive Education Association (U.S.). Commission on Human Relaltions. The Human Relations Series of Films. New York: Commission on human relations, Progressive education association, 1939.
Warning: These citations may not always be complete (especially for serials).