APA (7th ed.) Citation

Backman, C. R., & Backman, C. R. (2015). A medieval omnibus: Sources in medieval European history (1. ed.). Oxford Univ. Press.

Chicago Style (17th ed.) Citation

Backman, Clifford R., and Clifford R. Backman. A Medieval Omnibus: Sources in Medieval European History. 1. ed. Oxford [u.a.]: Oxford Univ. Press, 2015.

MLA (9th ed.) Citation

Backman, Clifford R., and Clifford R. Backman. A Medieval Omnibus: Sources in Medieval European History. 1. ed. Oxford Univ. Press, 2015.