found:Work cat.: 96-37820: Keith, J. Casebook on the Men in Black, 1997:CIP galley, p. 13 (Men in Black; MIBs)
found:Donning international encycl. psychic dict.(MIB)
found:Encyc. of occultism and parapsychology.
found:UFO encyc., 1990:index (men in black)
found:Ritchie, D. UFO, 1994:p. 137 (men in black: witnesses and students of UFO encounter phenomena have reported being visited by curious figures commonly known as "men in black.")
found:Encyc. of UFOs, 1980:p. 229 ("men in black" see Bender Mystery) p. 50 (three men dressed in black suits, three Men)
found:Sachs, M. UFO encyc., 1979:p. 197 (Men in Black, also known as MIB or MIBs: mysterious characters who reportedly question, threaten and sometimes harass UFO witnesses and researchers)
