Bibliography
- Phenomena: A Book of Wonders (with John Michell) (Thames & Hudson Ltd, 1977; hardback ISBN 0-500-01182-6, paperback ISBN 0-500-27094-5)
- Photographs of the Unknown (as Robert Rickard with Richard Kelly) New English Library Books, 1981; paperback ISBN 0-450-04991-4
- Living Wonders: Mysteries and Curiosities of the Animal World (with John Michell) (Thames & Hudson Ltd, 1983; paperback ISBN 0-500-27263-8)
- The Rough Guide to Unexplained Phenomena (with John Michell) (Rough Guides, October 19, 2000; paperback ISBN 1-85828-589-5)
- The Unexplained - Keep It Simple (with Joel Levy) (DK Publishing, 2002, paperback, ISBN 0-7894-8941-4
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