APA (7th ed.) Citation

Leeper, A. W. A., Seton-Watson, R. W., & Macartney, C. A. (1978). A history of medieval Austria (1st AMS ed.). AMS Press.

Chicago Style (17th ed.) Citation

Leeper, A. W. A., R. W. Seton-Watson, and C. A. Macartney. A History of Medieval Austria. 1st AMS ed. New York: AMS Press, 1978.

MLA (9th ed.) Citation

Leeper, A. W. A., et al. A History of Medieval Austria. 1st AMS ed. AMS Press, 1978.