Duffy, Gerald G. How to teach reading systematically / Gerald G. Duffy, George B. Sherman, and Laura R. Roehler - 2nd ed. - New York : Harper & Row, 1977 - x, 363 p. : ill. ; 23 cm. Includes bibliographies. ISBN: 0060417846 LCCN: 76-020721 Subjects--Topical Terms: Reading