Olson, Joanne P. Learning to teach reading in the elementary school : utilizing a competency-based instructional system / Joanne P. Olson, Martha H. Dillner. - New York : MacMillan, 1976. - xi, 753 p. : ill. ; 26 cm. Includes bibliographies and index. ISBN: 0023892803 Subjects--Topical Terms: Reading (Elementary).