Rhythmic proportions in early medieval ecclesiastical chant

MLA

Vollaerts, J. Rhythmic Proportions In Early Medieval Ecclesiastical Chant. 2nd ed. Leiden: Brill, 1960.

APA

Vollaerts, J. (1960). Rhythmic proportions in early medieval ecclesiastical chant. 2nd ed. Leiden: Brill.

Chicago

Vollaerts, J. Rhythmic Proportions In Early Medieval Ecclesiastical Chant. 2nd ed. Leiden: Brill, 1960.