Cita APA (7a ed.)
Worldwatch Institute & Brown, L. R. (1988). State of the world 2001: A Worldwatch Institute report on progress toward a sustainable society. Earthscan.
Cita Chicago Style (17a ed.)
Worldwatch Institute y Lester Russell Brown. State of the World 2001: A Worldwatch Institute Report on Progress Toward a Sustainable Society. London: Earthscan, 1988.
Cita MLA (9a ed.)
Worldwatch Institute y Lester Russell Brown. State of the World 2001: A Worldwatch Institute Report on Progress Toward a Sustainable Society. Earthscan, 1988.
Precaución: Estas citas no son 100% exactas.