APA (7e ed.) Bronvermelding

Thuis, S. (1952). Gregorian chant: A barometer of religious fervor in the Catholic Church. Grail Publication.

Chicago (17e ed.) Bronvermelding

Thuis, Stephen. Gregorian Chant: A Barometer of Religious Fervor in the Catholic Church. St. Meinrad, Ind.: Grail Publication, 1952.

MLA (8e ed.) Bronvermelding

Thuis, Stephen. Gregorian Chant: A Barometer of Religious Fervor in the Catholic Church. Grail Publication, 1952.