Wagner, Galen S. 
Marriott's practical electrocardiography /  by Galen S. Wagner.   - 11th ed.   - London  Wolters Kluwer Health/Lippincott Williams & Wilkins  2008.   - xii, 468 p. :  ill. (some col.) ;  26 cm. +  1 DVD-ROM (4 3/4 in.)