BROWN L R. (2000). VITAL SIGNS 2000-2001: ENVIRONMENTAL TRENDS THAT ARE SHAPING OUR FUTURE. EARTHSCAN.
Cita Chicago Style (17a ed.)BROWN L R. VITAL SIGNS 2000-2001: ENVIRONMENTAL TRENDS THAT ARE SHAPING OUR FUTURE. LONDON: EARTHSCAN, 2000.
Cita MLA (9a ed.)BROWN L R. VITAL SIGNS 2000-2001: ENVIRONMENTAL TRENDS THAT ARE SHAPING OUR FUTURE. EARTHSCAN, 2000.
Precaución: Estas citas no son 100% exactas.