Spears, Harold creator text xx New York, Cincinnati American Book Company c1941 1941 monographic eng

print

xv, 400 p. incl.front.,illus.,tables,diagrs. 23cm. [by] Harold Spears ... illustrated by the author. Education, Secondary Education United States LA222 .S65 373.73 41011551 731127 20180417022328.0 86154