Ghiselli, Edwin E. 1907-1980. The validity of occupational aptitude tests [by] Edwin E. Ghiselli. - New York, Wiley [1966] - vii, 155 p. illus. 22 cm. LCCN: 66021054 LC Class. No.: HF5549.5.E5 G4 / G4 Dewey Class. No.: 658.31