AACN Essentials of Critical-Care Nursing, Second EditionMarianne Chulay, Suzanne M. Burns, American Association of Critical-Care Nurses (AACN)May 3, 2010
Electrical Safety Handbook, 4th EditionJohn Cadick, Mary Capelli-Schellpfeffer, Dennis Neitzel, Al WinfieldMarch 15, 2012