Herr, Edwin L. Career development and counseling through the lifespan : systematic approach / Edwin L. Herr and Stanley H. Cramer - 5th ed. - New York : Harper Collins College Pub., 1996. - xii, 787 p. ; 24 cm. ISBN: 0673523667 Subjects--Topical Terms: Vocational guidance--United States. Dewey Class. No.: 331.7020973 / HER