Brief review to be added of Morris K Jessup's book “The Expanding Case for the UFO” (1957) (available on Amazon USA and on Amazon UK)
Web Resources
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Book References
For discussion see the following:
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Discussion by:
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Clark, Jerome in his “The UFO Encyclopedia: 1st edition: Volume 2 – Emergence of a Phenomenon” (1992) (available on Amazon USA and on Amazon UK) at page 209 of the Omnigraphics hardback edition in an entry entitled “Jessup, Morris Ketchum (1900-1959)”. |
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Randle, Kevin D in “The Encyclopedia of UFOs” (1980) edited by Ronald Story (available on Amazon USA and on Amazon UK) at pages 11-13 (in an entry entitled “Allende letters”) of the NEL hardback edition. |
3 |
Other Material