APA (7th ed.) Citation

Penfold, R. A. (1989). Digital audio projects. Babani.

Chicago Style (17th ed.) Citation

Penfold, R. A. Digital Audio Projects. Babani, 1989.

MLA (9th ed.) Citation

Penfold, R. A. Digital Audio Projects. Babani, 1989.

Warning: These citations may not always be 100% accurate.