Sheafer, L. (1968). O'Neill: Son and playwright. j.m. dent and sons.
استشهاد بنمط شيكاغوSheafer, Louis. O'Neill: Son and Playwright. London: j.m. dent and sons, 1968.
MLA استشهادSheafer, Louis. O'Neill: Son and Playwright. j.m. dent and sons, 1968.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.