Primoff, E. S. (1955). Test selection by job analysis: The J-coefficient, what it is, how it works (2nd ed.). U.S. Civil Service Commission, Standards Division, Test Development Section.
Chicago Style (17th ed.) CitationPrimoff, Ernest S. Test Selection by Job Analysis: The J-coefficient, What It Is, How It Works. 2nd ed. Washington, D.C.: U.S. Civil Service Commission, Standards Division, Test Development Section, 1955.
MLA (9th ed.) CitationPrimoff, Ernest S. Test Selection by Job Analysis: The J-coefficient, What It Is, How It Works. 2nd ed. U.S. Civil Service Commission, Standards Division, Test Development Section, 1955.
Warning: These citations may not always be 100% accurate.