Encyclopaedia of Space
by Ian Ridpath
ISBN 13: 9780600382898
Format: Hardcover (160 pages) Publisher: Hamlyn Published: 27 Mar 1981
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Philip's Astronomy Starter Pack
by Ian Ridpath, Wil Tirion
ISBN 13: 9781849074247
Format: Paperback (80 pages) Publisher: Philip's Published: 07 Jul 2016
The Illustrated Encyclopedia of the Universe
by Ian Ridpath, Martin J. Rees
ISBN 13: 9780823025121
Format: Hardcover (384 pages) Publisher: Watson-Guptill Publications Published: 01 Jul 2001