Thomas, N., & Oldknow, T. (1991). By judgement of the eye: The Varya and Hans Cohn collection. Los Angeles: Hans Cohn.
استشهاد بنمط شيكاغوThomas, Nancy, و Tina Oldknow. By Judgement of the Eye: The Varya and Hans Cohn Collection. Los Angeles: Hans Cohn, 1991.
MLA استشهادThomas, Nancy, و Tina Oldknow. By Judgement of the Eye: The Varya and Hans Cohn Collection. Los Angeles: Hans Cohn, 1991.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.