Field Guide to the Animals and Plants of Tristan Da Cunha and Gough Island
by Peter Ryan
ISBN 13: 9781874357339
Format: Paperback (168 pages) Publisher: Pisces Publications Published: 30 Apr 2007
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Explorers and Mapmakers
ISBN 13: 9780241125564
Format: Hardcover (48 pages) Publisher: Hamish Hamilton Ltd Published: 26 Oct 1989
Solar System
by Peter Ryan, Ludek Pesek
ISBN 13: 9780713910438
Format: Hardcover (224 pages) Publisher: Viking Published: 30 Nov 1978
Modelling and Analysis of Security Protocols
by Michael Goldsmith, Steve Schneider, Peter Ryan, Bill Roscoe, Gavin Lowe
ISBN 13: 9780201674712
Format: Paperback (320 pages) Publisher: Addison Wesley Published: 06 Dec 2000
The Green Fields of Africa
ISBN 13: 9781843862048
Format: Paperback Publisher: Vanguard Press Published: 29 Nov 2004
The Complete Photographic Guide Birds of Southern Africa
by Ian Sinclair,Peter Ryan
ISBN 13: 9781770073883
Format: Paperback (440 pages) Publisher: Struik Nature Published: 01 Jun 2009
Birds of Africa: South of the Sahara
ISBN 13: 9781770076235
Format: Paperback (768 pages) Publisher: Struik Nature Published: 01 Oct 2010