APA (7th ed.) Citation

Austin, D. (1997). Hit the spot: How to target, tone, and slim your problem areas. Fireside.

Chicago Style (17th ed.) Citation

Austin, Denise. Hit the Spot: How to Target, Tone, and Slim Your Problem Areas. New York: Fireside, 1997.

MLA (9th ed.) Citation

Austin, Denise. Hit the Spot: How to Target, Tone, and Slim Your Problem Areas. Fireside, 1997.