Walls, R. M. (2008). Manual of emergency airway management (3. edition.). Philadelphia: Lippincott Williams & Wilkins.
Citación estilo ChicagoWalls, Ron M. Manual of Emergency Airway Management. 3. edition. Philadelphia: Lippincott Williams & Wilkins, 2008.
Cita MLAWalls, Ron M. Manual of Emergency Airway Management. 3. edition. Philadelphia: Lippincott Williams & Wilkins, 2008.
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