APA (7th ed.) Citation

Watkinson, J. (1994). An introduction to digital audio. Focal Press.

Chicago Style (17th ed.) Citation

Watkinson, John. An Introduction to Digital Audio. London [etc.]: Focal Press, 1994.

MLA (9th ed.) Citation

Watkinson, John. An Introduction to Digital Audio. Focal Press, 1994.

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