APA (7th ed.) Citation

Frey, H., Schoenfeld, W. C., & Mollenhauer, C. (1988). A Collection of easy violin pieces. Amsco Pub.

Chicago Style (17th ed.) Citation

Frey, Hugo, William C. Schoenfeld, and Crosby Mollenhauer. A Collection of Easy Violin Pieces. New York: Amsco Pub, 1988.

MLA (9th ed.) Citation

Frey, Hugo, et al. A Collection of Easy Violin Pieces. Amsco Pub, 1988.