APA استشهاد

Spitz, L. W., & Lyman, R. W. (1965). Major crises in western civilization: Greeks to 1960. Harcourt, Brace and world Inc.

استشهاد بنمط شيكاغو

Spitz, Lewis W., و Richard W. Lyman. Major Crises in Western Civilization: Greeks to 1960. New York: Harcourt, Brace and world Inc, 1965.

MLA استشهاد

Spitz, Lewis W., و Richard W. Lyman. Major Crises in Western Civilization: Greeks to 1960. Harcourt, Brace and world Inc, 1965.