Mufon ufo journal 1977 11. november
Mufon ufo journal 1977 10. october
Mufon ufo journal 1977 6. june
MUFON UFO Journal - 1989 10. October
MUFON UFO Journal - 1990 8. August
MUFON UFO Journal - 1984 11. November
MUFON UFO Journal - 1986 6. June
MUFON UFO Journal - 1988 4. April
MUFON UFO Journal - 1988 5. May
MUFON UFO Journal - 1987 10. October
MUFON UFO Journal - 1987 2. February
MUFON UFO Journal - 1985 8. August
