APA (7th ed.) Citation

Vinal, H., & Gustafson, R. (1921). Voices. [publisher not identified].

Chicago Style (17th ed.) Citation

Vinal, Harold, and Ralph Gustafson. Voices. Cornwall, N.Y.: [publisher not identified], 1921.

MLA (9th ed.) Citation

Vinal, Harold, and Ralph Gustafson. Voices. [publisher not identified], 1921.