Brown, Lester R. 1934- State of the World, 1991: A Worldwatch Institute Report on Progress Toward a Sustainable Society / Lester R Brown - First edition - New York : W W Norton & Co Inc، 1991. - ؛ 254 p 24 cm. ISBN: 9780393307337 0393307336 Subjects--Topical Terms: Economic history--1971-1990.Economic policy LC Class. No.: HC59 / .S4579 1991 Dewey Class. No.: 330.9047 / BLS