Sewell William H Education, occupation and earnings Achievements - New York Academic Press U S A 1975 - xviii,237p. cm. - Studies In Population . Bib p. 217-28; Appendix p. 194-215 ISBN: 0126378509 Source: General Book Subjects--Topical Terms: Education - University Dewey Class. No.: T4:7(X:93).73.N7, L5