APA (7th ed.) Citation

Backes, M., & Dolling, R. (1971). Art of the dark ages. H. N. Abrams.

Chicago Style (17th ed.) Citation

Backes, Magnus, and Regine Dolling. Art of the Dark Ages. New York: H. N. Abrams, 1971.

MLA (9th ed.) Citation

Backes, Magnus, and Regine Dolling. Art of the Dark Ages. H. N. Abrams, 1971.