Richmond, William Kenneth, 1910- The concept of educational technology: a dialogue with yourself; edited by W. Kenneth Richmond. - London, Weidenfeld & Nicolson, 1970. - viii, 254 p. illus., form, plan. 23 cm. Includes bibliographical references. ISBN: 0297001124 LCCN: 73517060 Nat. Bib. No.: B70-20241 Subjects--Topical Terms: Educational technology. Dewey Class. No.: 371.3