Cita APA

Lange, G. 1., & Greenwald, M. (1909). Pure as snow: Edelweiss : duet. New York: Century Music Publishing Co..

Citación estilo Chicago

Lange, Gustav 1830-1889, y Martin Greenwald. Pure As Snow: Edelweiss : Duet. New York: Century Music Publishing Co., 1909.

Cita MLA

Lange, Gustav 1830-1889, y Martin Greenwald. Pure As Snow: Edelweiss : Duet. New York: Century Music Publishing Co., 1909.