State of the world 1989 : a Worldwatch Institute report on progress towards a sustainable society / project director Lester R. Brown ... [et al.]. - New yolk WW Norton And Company 1989 - xvi, 256 pages 24 cm. Includes bibliographical references and index ISBN: 0393026388 0393305678 Subjects--Topical Terms: Sustainable development.Economic history--1971-1990. LC Class. No.: HC 59 / .S7 1989