Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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