Herr, Edwin L. Career guidance through the life span : systematic approaches / Edwin L. Herr, Stanley H. Cramer. - Boston : Little, Brown, c1979. - xv, 420 p. : ill. ; 24 cm. Includes Bibliography: p. 384-410. and index. ISBN: 0316358673 Subjects--Topical Terms: Vocational guidance--United States. Dewey Class. No.: 331.7020973 / HEC 1979