GUILFORD J. P. &. H. R., . (1971). ANALYSIS OF INTELLIGENCE. : MC GRAW HILL BOOK COMPANY.
GUILFORD J P & HOEPFNER RALPH, . 1971. ANALYSIS OF INTELLIGENCE. : MC GRAW HILL BOOK COMPANY.
GUILFORD J P & HOEPFNER RALPH, . ANALYSIS OF INTELLIGENCE. : MC GRAW HILL BOOK COMPANY. 1971.
