Renewable Energy Resources
by John Twidell,Tony Weir
ISBN 13: 9780419253303
Format: Paperback (624 pages) Publisher: Taylor & Francis Published: 24 Nov 2005
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A Guide to Small Wind Energy Conversion Systems
by John Twidell
ISBN 13: 9780521281621
Format: Paperback (166 pages) Publisher: Cambridge University Press Published: 09 Jun 2011