APA استشهاد

Copeland, L., & Lamm, L. W. (1973). world's great speeches. Dover.

استشهاد بنمط شيكاغو

Copeland, Lewis, و Lawrence W. Lamm. World's Great Speeches. New York: Dover, 1973.

MLA استشهاد

Copeland, Lewis, و Lawrence W. Lamm. World's Great Speeches. Dover, 1973.