State of the World: An Urban Planet (State of the World (Paperback))
by Worldwatch Inst
ISBN 13: 9780393329230
Format: Paperback (288 pages) Publisher: W. W. Norton & Co. Published: 05 Jan 2007
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Vital Signs: The Trends That Are Shaping Our Future (Vital Signs: The Environmental Trends That Are Shaping Our Future)
ISBN 13: 9780393328721
Format: Paperback (160 pages) Publisher: W. W. Norton & Co. Published: 21 Jul 2006