Brief review to be added of David M Jacobs's book “Secret Life” (1992) (available on Amazon USA and on Amazon UK).
Later published under the title “Alien Encounters”.
Brief review to be added of David M Jacobs's book “The Threat” (1998) (available on Amazon USA and on Amazon UK)
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)
Brief review to be added of David Michael Jacobs's book “The UFO Controversy in America” (1975) (available on Amazon USA and on Amazon UK)
Brief review to be added of Morris K Jessup's book “UFO : The Case for the UFO” (1955) (available on Amazon USA and on Amazon UK)