Cita APA (7a ed.)

Grenard, S., & Traverse, N. (1981). Introduction to respiratory therapy (3rd ed.). Year Book Medical Pub.

Cita Chicago Style (17a ed.)

Grenard, Steve, y Norman Traverse. Introduction to Respiratory Therapy. 3rd ed. Chicago: Year Book Medical Pub, 1981.

Cita MLA (9a ed.)

Grenard, Steve, y Norman Traverse. Introduction to Respiratory Therapy. 3rd ed. Year Book Medical Pub, 1981.