APA (7th ed.) Citation

Busch, H., Lohse, B., & Gorge, P. (1960). Romanesque Europe (2nd ed.). Macmillan.

Chicago Style (17th ed.) Citation

Busch, Harald, Bernd Lohse, and Peter Gorge. Romanesque Europe. 2nd ed. New York: Macmillan, 1960.

MLA (9th ed.) Citation

Busch, Harald, et al. Romanesque Europe. 2nd ed. Macmillan, 1960.