APA (7th ed.) Citation

Ruiz, M. D. (2002). Motivation and adherence to exercise in adults. [publisher not identified].

Chicago Style (17th ed.) Citation

Ruiz, Matthew D. Motivation and Adherence to Exercise in Adults. [Place of publication not identified]: [publisher not identified], 2002.

MLA (9th ed.) Citation

Ruiz, Matthew D. Motivation and Adherence to Exercise in Adults. [publisher not identified], 2002.