Παραπομπή APA

Strayer, J. R., & Gatzke, H. W. (1974). Mainstream of Civilization to 1715 (2nd ed.). Harcourt Brace Jovanovich.

Παραπομπή Chicago Style

Strayer, Joseph R., και Hans W. Gatzke. Mainstream of Civilization to 1715. 2nd ed. New York: Harcourt Brace Jovanovich, 1974.

Παραπομπή MLA

Strayer, Joseph R., και Hans W. Gatzke. Mainstream of Civilization to 1715. 2nd ed. Harcourt Brace Jovanovich, 1974.