Cita APA (7a ed.)

Grenard, S., & Traverse, N. (1981). Introduction to respiratory therapy.

Cita Chicago Style (17a ed.)

Grenard, Steve, y Normen Traverse. Introduction to Respiratory Therapy. 1981.

Cita MLA (9a ed.)

Grenard, Steve, y Normen Traverse. Introduction to Respiratory Therapy. 1981.