Tompkins, Ellsworth. Class size: the larger high school. Individual class size in 1,260 secondary schools. - [Washington] Federal Security Agency, Office of Education [1949] - vi, 29 p. 26 cm. LCCN: e 49000014 Subjects--Topical Terms: Class size LC Class. No.: L111 / .A72 no. 305 Dewey Class. No.: 371.25