APA (7th ed.) Citation

Choplin, P. (1994). Once upon a tree: For SATB voices, accompanied. Glory Sound.

Chicago Style (17th ed.) Citation

Choplin, Pepper. Once upon a Tree: For SATB Voices, Accompanied. Delaware Water Gap, Pa: Glory Sound, 1994.

MLA (9th ed.) Citation

Choplin, Pepper. Once upon a Tree: For SATB Voices, Accompanied. Glory Sound, 1994.