APA (7th ed.) Citation

Smits van Waesberghe, J., & Guido von Arezzo 992-1050. (1975). Guidonis "Prologus in antiphonarium". Knuf.

Chicago Style (17th ed.) Citation

Smits van Waesberghe, Joseph, and Guido von Arezzo 992-1050. Guidonis "Prologus in Antiphonarium". Buren: Knuf, 1975.

MLA (9th ed.) Citation

Smits van Waesberghe, Joseph, and Guido von Arezzo 992-1050. Guidonis "Prologus in Antiphonarium". Knuf, 1975.