Wooldridge, Susan, 1940- Computer input design. - 1st ed. - New York, Petrocelli Books, 1974. - xvi, 199 p. illus. 24 cm. Bibliography: p. 191-195. ISBN: 0884050297 LCCN: 73022157 Subjects--Topical Terms: Computer programming. LC Class. No.: QA76.6 / .W68 1974 Dewey Class. No.: 001.6/442