TY - BOOK AU - Koon,Cline Morgan TI - Sources of visual aids and equipment for instructional use in schools, T2 - U.S. Office of Education. Pamphlet AV - L111 .A75 no. 80 PY - 1937/// CY - Washington PB - U.S. Govt. Print. Off. KW - Motion pictures KW - Catalogs KW - Slides (Photography) KW - Visual education N1 - Later edition by U.S. Office of Education; L111.A75 with: Safety and health of the school child / James Frederick Rogers. Washington : U.S. Govt. Print. Off., 1937. Bound together subsequent to publication ER -