APA (7th ed.) Citation

Apel, W. (1950). French secular music of the late fourteenth century. Medieval Academy of America.

Chicago Style (17th ed.) Citation

Apel, Willi. French Secular Music of the Late Fourteenth Century. Cambridge: Medieval Academy of America, 1950.

MLA (9th ed.) Citation

Apel, Willi. French Secular Music of the Late Fourteenth Century. Medieval Academy of America, 1950.