Cita APA (7a ed.)

Ornstein, R., & Sobel, D. (1989). Healthy pleasures. Perseus.

Cita Chicago Style (17a ed.)

Ornstein, Robert, y David Sobel. Healthy Pleasures. Cambridge: Perseus, 1989.

Cita MLA (9a ed.)

Ornstein, Robert, y David Sobel. Healthy Pleasures. Perseus, 1989.