Cita APA (7a ed.)

Grenard, S., & Traverse, N. (1981). Introduction to respiratory therapy. Year Book Medical Ppublishers.

Cita Chicago Style (17a ed.)

Grenard, Steve, y Normen Traverse. Introduction to Respiratory Therapy. Chicago: Year Book Medical Ppublishers, 1981.

Cita MLA (9a ed.)

Grenard, Steve, y Normen Traverse. Introduction to Respiratory Therapy. Year Book Medical Ppublishers, 1981.