| Year: | 1991 |
| Author: | John SPENCER |
| Title: | UFOs: THE DEFINITIVE CASEBOOK |
| Language: | English |
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| Year: | 1991 | |
| Publisher: | Hamlyn, London | |
| Description: | 192 | |
| Cover | Language | Title | Year | |
|---|---|---|---|---|
| Spanish/Catalan | OVNIS, LA RESPUESTA DEFINITIVA | 1992 |
| John Spencer, 1954 age 71 years |
| Cover | Title | Year |
|---|---|---|
| PHENOMENON - Forty Years of Flying Saucers |
1988 | |
| PHENOMENON: FROM FLYING SAUCERS TO UFOs - Forty Years of Facts and Research |
1988 | |
| PERSPECTIVES |
1989 | |
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UFO LEXICON |
1990 |
| THE UFO ENCYCLOPEDIA |
1991 | |
| WORLD ATLAS OF UFOs |
1991 | |
| THE ENCYCLOPEDIA OF THE WORLD'S GREATEST MYSTERIES |
1995 | |
| THE UNEXPLAINED |
1997 | |
| FIFTY YEARS OF UFOs |
1997 | |
| ALIEN CONTACT |
1998 | |
| UFOs and then PSI Interface |
2001 |