APA (7th ed.) Citation

Hagen & Grogan. (1992). Sound advantage: A pronunciation book. Prentice Hall.

Chicago Style (17th ed.) Citation

Hagen and Grogan. Sound Advantage: A Pronunciation Book. New Jersey: Prentice Hall, 1992.

MLA (9th ed.) Citation

Hagen and Grogan. Sound Advantage: A Pronunciation Book. Prentice Hall, 1992.

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