Cita APA

Ruppel, G. L. 1., & Ruppel, G. L. 1. (1991). Manual of pulmonary function testing (5. edition.). St Louis: Mosby Year Book.

Citación estilo Chicago

Ruppel, Gregg L. 1948-, y Gregg L. 1948- Ruppel. Manual of Pulmonary Function Testing. 5. edition. St Louis: Mosby Year Book, 1991.

Cita MLA

Ruppel, Gregg L. 1948-, y Gregg L. 1948- Ruppel. Manual of Pulmonary Function Testing. 5. edition. St Louis: Mosby Year Book, 1991.