APA (7th ed.) Citation

Crosby, E. U., Bishko, C. J., & Kellog, R. L. (1983). Medieval studies: A bibliographical guide. Garland.

Chicago Style (17th ed.) Citation

Crosby, Everett Uberto, Charles J. Bishko, and Robert L. Kellog. Medieval Studies: A Bibliographical Guide. New York [u.a.]: Garland, 1983.

MLA (9th ed.) Citation

Crosby, Everett Uberto, et al. Medieval Studies: A Bibliographical Guide. Garland, 1983.