Schamroth, Leo. An introduction to electrocardiography / by Leo Schamroth. - 6th ed. - Oxford ; Boston : Blackwell Scientific Publications ; St. Louis, Mo. : Distributors, USA, Blackwell Mosby, 1982 - xiv, 317 p. : ill. ISBN: 063200973X 9780632009732 Subjects--Topical Terms: Electrocardiography National Library of Medicine Call No.: WG 140 / .S3 1982