Espich, James E. Developing programmed instructional materials : a handbook for pr ogram writers by James E. Espich & Bill Williams. - Palo Alto, Calif. : Fearon Publishers, 1967. - vi, 138 p. : ill., forms ; 22 cm. Subjects--Topical Terms: Programmed instruction --Authorship.------ Dewey Class. No.: 370.777