by J. Allen Hynek, Jacques F. Vallée
publisher: Da Capo Press publish date: December 21st 1998
format: paperback pages: 288
language: English
ISBN:
156924782X (9781569247822)
publisher: McGraw-Hill/Contemporary publish date: May 28th 1972
format: hardcover pages: 256
language: English
ISBN:
0809291304 (9780809291304)
publisher: Ballantine Books publish date: December 12th 1977
format: mass market paperback pages: 310
language: English
ISBN:
0345239539 (9780345239532)
publisher: Ballantine Books publish date: December 12th 1977
format: mass market paperback pages: 309
language: English
ISBN:
0345273613 (9780345273611)
publisher: Time-Life Books Inc publish date: September 1990
format: hardcover pages: 276
language: English
ISBN:
0809480557 (9780809480555)
publisher: Time Life Education publish date: November 1st 1989
format: hardcover pages: 276
language: English
ISBN:
0809480549 (9780809480548)
publisher: Corgi Books publish date: 1974
format: paperback pages: 336
language: English
ISBN:
0552094307 (9780552094306)
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