College Entrance Examination Board, Educational Testing Service (U.S.), Graduate Record Examinations Board (U.S.), & Willingham, W. W. (1988). Testing handicapped people. Allyn and Bacon.
Chicago-viite (17. p.)College Entrance Examination Board, Educational Testing Service (U.S.), Graduate Record Examinations Board (U.S.), ja Warren W. Willingham. Testing Handicapped People. Boston: Allyn and Bacon, 1988.
MLA-viite (8. p.)College Entrance Examination Board, et al. Testing Handicapped People. Allyn and Bacon, 1988.
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