Hawkins, Layton S., 1879- Development of vocational education / by Layton S. Hawkins, Charles A. Prosser and John C. Wright - Chicago : American Technical Society, 1951 - ix, 656 p. : ill. ; ports. 22 cm. Includes bibliographies LCCN: 51-005152 Subjects--Topical Terms: Vocational education--History