Bowen, Charles (ed.): UFOs in two worlds. FSR Special Issue No. 4, August 1971

"Flying saucers over Papua" by Norman E.G. Cruttwell (the Gill case), "The New Guinea sightings, A note on the anthropoligcal aspects" by Gordon Creighton, "Type-1 phenomena in Spain and Portugal-1." (in two parts), and "Survey of Iberian landings" by Vicente-Juan Ballester Olmos.
1971, Flying Saucer Review, London. Special issue No 4.
Softcover, magazine format, 64 pages, illustrated