Brief review to be added of John E Mack's book “Passport to the Cosmos” (1999) (available on Amazon USA and on Amazon UK)
Brief review to be added of John W Macvey's book “Interstellar Travel” (1977) (available on Amazon USA and on Amazon UK)
Brief review to be added of “The Starflight Handbook” (1989) (available on Amazon USA and on Amazon UK) by Eugene Mallove and Gregory Matloff.
Brief review to be added of John W Macvey's book “Whispers from Space” (1974) (available on Amazon USA and on Amazon UK)
Brief review to be added of John H Manas' book “Flying Saucers and Space Men” (1962) (available on Amazon USA and on Amazon UK)