MLA

Karp, Theodore. Aspects of Orality and Formularity In Gregorian Chant. Evanston: Northwestern University Press, 1998.

APA

Karp, T. (1998). Aspects of Orality and Formularity in Gregorian Chant. Evanston: Northwestern University Press.

Chicago

Karp, Theodore Aspects of Orality and Formularity In Gregorian Chant. Evanston: Northwestern University Press, 1998.