PDFs: 4 more sets of UFO newsletters (USA, 1950s-1990s) : "Washington Saucer Intelligence" (1950s), "Saucer Institute of Research" (1960s), "Uformant" (1980s), "Letters from Andromeda" (1990s)
I've now added the following 4 further sets of UFO newsletters/magazines from the USA to the