Barker, David James Purslove Epidemiology in medical practice/ D. J. P. Barker - 3rd ed. - Edinburgh: Churchill Livingstone, 1984 - viii, 158 p.: ill.; 21cm - Churchill Livingstone medical text . Acc. No. 08753 Includes bibliographical references ISBN: 0443025568 Subjects--Topical Terms: Epidemiology National Library of Medicine Call No.: WA105