Cita APA (7a ed.)

Krug, D., & Greenwald, M. (1912). Christmas song: Stilly night, holy night, op.196 = stille nacht, heilige nacht. Century Music.

Cita Chicago Style (17a ed.)

Krug, Diederich, y M. Greenwald. Christmas Song: Stilly Night, Holy Night, Op.196 = Stille Nacht, Heilige Nacht. New York: Century Music, 1912.

Cita MLA (9a ed.)

Krug, Diederich, y M. Greenwald. Christmas Song: Stilly Night, Holy Night, Op.196 = Stille Nacht, Heilige Nacht. Century Music, 1912.