TY - BOOK ED - United Nations Development Programme. ED - United Nations Development Programme. ED - United Nations. ED - World Energy Council. TI - World Energy Assessment: energy and the challenge of sustainability SN - 9211261260 (recycled, acidfree paper) U1 - 333.79 23 PY - 2000/// CY - New York, NY PB - United Nations Development Programme KW - Power resources KW - Energy development N1 - Includes index; Includes bibliographical references ER -