APA (7th ed.) Citation

Lutz, C. E. (1977). Schoolmasters of the tenth century. Archon Books.

Chicago Style (17th ed.) Citation

Lutz, Cora E. Schoolmasters of the Tenth Century. Hamden, Conn.: Archon Books, 1977.

MLA (9th ed.) Citation

Lutz, Cora E. Schoolmasters of the Tenth Century. Archon Books, 1977.