Freedman, Florence B. Classroom teacher's guide to audio-visual material [by] Florence B. Freedman [and] Esther L. Berg. - [1st ed., rev. and enl.] - Philadelphia Chilton Books, Educational Division 1961.] - xvii, 279 p. illus. 25 cm. LCCN: 91002224 //r89 Subjects--Topical Terms: Audiovisual education. LC Class. No.: LB1043 / .F75 1961 Dewey Class. No.: 371.33