APA (7th ed.) Citation

O'Connell, D., Louis IX, K. o. F., & Isabelle, Q. o. N. (1979). The instructions of Saint Louis: A critical text. U.N.C. Dept. of Romance Languages.

Chicago Style (17th ed.) Citation

O'Connell, David, King of France Louis IX, and Queen of Navarre Isabelle. The Instructions of Saint Louis: A Critical Text. Chapel Hill: U.N.C. Dept. of Romance Languages, 1979.

MLA (8th ed.) Citation

O'Connell, David, et al. The Instructions of Saint Louis: A Critical Text. U.N.C. Dept. of Romance Languages, 1979.