Ward, J. B. (1923). Gregorian chant: According to the principles of Dom André Mocquereau of Solesmes. The Catholic Education Press.
Čikaški stil citiranja (17. izdanje)Ward, Justine Bayard. Gregorian Chant: According to the Principles of Dom André Mocquereau of Solesmes. Washington, D. C.: The Catholic Education Press, 1923.
MLA način citiranja (8. izdanje)Ward, Justine Bayard. Gregorian Chant: According to the Principles of Dom André Mocquereau of Solesmes. The Catholic Education Press, 1923.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.