Williamson, E. G. 1900-1979. Vocational counseling: some historical, philosophical, and theoretical perspectives [by] E.G. Williamson. - New York, McGraw-Hill [1965] - xx, 229 p. illus. 23 cm. LCCN: 64008281 LC Class. No.: HF5381 .W69 / .W69 Dewey Class. No.: 371.425