TY - BOOK AU - Rowntree,Derek TI - Teaching through self-instruction: how to develop open learning materials SN - 1850919577 (pbk.) PY - 1990/// CY - London PB - Nichols Pub. KW - Distance education KW - Self-culture KW - Instructional systems KW - Design KW - Teaching KW - Aids and devices KW - Great Britain KW - Distance study N1 - Includes bibliographical references ER -