Prehistoric Life (Mysteries of...)
by David Unwin
ISBN 13: 9780749624859
Format: Hardcover (40 pages) Publisher: Aladdin/Watts Published: 26 Sep 1996
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Geographic Information Analysis
by David O'Sullivan, David Unwin
ISBN 13: 9780470288573
Format: Illustrated (432 pages) Publisher: Wiley Published: 09 Apr 2010
Virtual Reality in Geography (Geographic Information Systems Workshop)
by Peter Fisher, David Unwin
ISBN 13: 9780748409051
Format: Hardcover (416 pages) Publisher: CRC Press Published: 22 Nov 2001