Harper, A. E., & Harper, E. S. (1992). Preparing Objective Examinations: A Hand book for Teachers, Students and Examiners. Prentice-Hall of India.
استشهاد بنمط شيكاغوHarper, A Edwin, و Erika S. Harper. Preparing Objective Examinations: A Hand Book for Teachers, Students and Examiners. New Delhi: Prentice-Hall of India, 1992.
MLA استشهادHarper, A Edwin, و Erika S. Harper. Preparing Objective Examinations: A Hand Book for Teachers, Students and Examiners. Prentice-Hall of India, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.