APA استشهاد

Sheaffer, L. (1969). O'Neill: Son and playwright. Dent.

استشهاد بنمط شيكاغو

Sheaffer, Louis. O'Neill: Son and Playwright. London: Dent, 1969.

MLA استشهاد

Sheaffer, Louis. O'Neill: Son and Playwright. Dent, 1969.