TY - BOOK AU - Perraton,H.D. TI - Open and distance learning in the developing world SN - 0415194180 (hbk : alk. paper) AV - LC5808.D48 P47 2000 U1 - 371.3/5/091724 21 PY - 2000/// CY - London, New York PB - Routledge KW - Distance education KW - Developing countries KW - Open learning KW - sears N1 - Includes bibliographical references (p. [209]-222) and index ER -