Marriott, Henry J. L. 1917- Practical electrocardiography / [electronic resource] / Henry J.L. Marriott.. — 6th ed.. — Baltimore : : Williams & Wilkins,, 1977, c1972.. — xv, 333 p. : : ill. (1 in pocket) ; 24 cm. Includes bibliographies and index. ISBN: 0683055739 9780683055733 LCCN: 76049457 Nat. Bib. Agency Control No.: 7612409 DNLM Subjects--Topical Terms: Electrocardiography.Électrocardiographie.Elektrocardiografie.Electrocardiography. LC Class. No.: RC683.5.E5 / M3 1977 Dewey Class. No.: 616.1/2/0754 National Library of Medicine Call No.: WG 140 / M359p 1977