Hamon, Ray L. 1895- Lighting schoolrooms. - [Washington] Federal Security Agency, U.S. Office of Education [1948] - 17 p. 23 cm. - United States. Office of Education. Pamphlet. no. 104. . LCCN: e 48000011 Subjects--Topical Terms: School buildings--Lighting. LC Class. No.: L111 / .A75 no. 104