Cita APA (7a ed.)

Gaarder, K. R., & Montgomery, P. S. (1977). Clinical biofeedback: A procedural manual. Williams & Wilkins.

Cita Chicago Style (17a ed.)

Gaarder, Kenneth R., y Penelope S. Montgomery. Clinical Biofeedback: A Procedural Manual. Baltimore: Williams & Wilkins, 1977.

Cita MLA (9a ed.)

Gaarder, Kenneth R., y Penelope S. Montgomery. Clinical Biofeedback: A Procedural Manual. Williams & Wilkins, 1977.