APA
Peter Wagner R. L. C., . (1986). Introduction to the Gregorian melodies : a handbook of plainsong. Part 1. Origin and development of the forms of the liturgical chant up to the end of the Middle Ages. New York: Da Capo Press.
Chicago
Peter Wagner Richard L Crocker, . 1986. Introduction to the Gregorian melodies : a handbook of plainsong. Part 1. Origin and development of the forms of the liturgical chant up to the end of the Middle Ages. New York: Da Capo Press.
Harvard
Peter Wagner R. L. C., . (1986). Introduction to the Gregorian melodies : a handbook of plainsong. Part 1. Origin and development of the forms of the liturgical chant up to the end of the Middle Ages. New York: Da Capo Press.
MLA
Peter Wagner Richard L Crocker, . Introduction to the Gregorian melodies : a handbook of plainsong. Part 1. Origin and development of the forms of the liturgical chant up to the end of the Middle Ages. New York: Da Capo Press. 1986.
