Cita APA (7th ed.)
Strayer, J. R., Harbison, H. E., & Gatzek, H. W. (1974). The mainstream of civilization: To 1715 (2nd ed.). Harcourt.
Cita Chicago (17th ed.)
Strayer, Joseph R., Harris E. Harbison, i Hans W. Gatzek. The Mainstream of Civilization: To 1715. 2nd ed. New York: Harcourt, 1974.
Cita MLA (9th ed.)
Strayer, Joseph R., et al. The Mainstream of Civilization: To 1715. 2nd ed. Harcourt, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.