Hewitt, Charles Gordon House-flies and how they spread disease / C. G. Hewitt - Cambridge : Cambridge University Press, 2011 - 2 pt., [vii]-xii, 122 p. : ill. ; 21 cm. - The Cambridge manuals of science and literature . Includes bibliographical references and index ISBN: 9781107673052 (pbk.) 1107673054 (pbk.) Subjects--Topical Terms: Flies as carriers of disease