Hoppock, Robert, 1901- Occupational information : where to get it and how to use it in counseling and in teaching / Robert Hoppock, - 3d ed. - New York : McGraw-Hill, c1967 - xiv, 598 p. ; 23 cm. - McGraw-Hill series in education . - McGraw-Hill series in education. . Includes Bibliography and Index Subjects--Topical Terms: Vocational guidance.Group guidance in education. Dewey Class. No.: 371.425 / HOO 1967