APA (7th ed.) Citation

Casabona, H., & Frederick, D. (1986). Beginning synthesizer. GPI Publ. u.a.

Chicago Style (17th ed.) Citation

Casabona, Helen, and David Frederick. Beginning Synthesizer. Cupertino, Calif: GPI Publ. u.a, 1986.

MLA (9th ed.) Citation

Casabona, Helen, and David Frederick. Beginning Synthesizer. GPI Publ. u.a, 1986.