APA-viite (7. p.)

(1920). International Congress of Gregorian Chant: Held at the Metropolitan Cathedral Church of St. Patrick, New York, on June 1st, 2nd and 3rd, 1920. [publisher not identified].

Chicago-viite (17. p.)

International Congress of Gregorian Chant: Held at the Metropolitan Cathedral Church of St. Patrick, New York, on June 1st, 2nd and 3rd, 1920. New York: [publisher not identified], 1920.

MLA-viite (8. p.)

International Congress of Gregorian Chant: Held at the Metropolitan Cathedral Church of St. Patrick, New York, on June 1st, 2nd and 3rd, 1920. [publisher not identified], 1920.