Judd, C. M., Kidder, L. H., & Smith, . E. R. (1991). Research Methods in Social Relations: Instructor's manual to accompany (Sixth edition.). USA: Holt, Rinehart, and Winston Inc.
استشهاد بنمط شيكاغوJudd, Charles M., Louise H. Kidder, و Eliot R. Smith. Research Methods in Social Relations: Instructor's Manual to Accompany. Sixth edition. USA: Holt, Rinehart, and Winston Inc, 1991.
MLA استشهادJudd, Charles M., Louise H. Kidder, و Eliot R. Smith. Research Methods in Social Relations: Instructor's Manual to Accompany. Sixth edition. USA: Holt, Rinehart, and Winston Inc, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.