UFO's and Extra Terrestrials - Yves Naud Vol. 1-4 Complete

UFO's and Extra-Terrestrials in History - Yves Naud, volumes 1-4 (complete set) 1978 Friends of History edition, vintage collectable books in excellent condition. 4 volume aggregate of data, first hand accounts, and ancient lore relating to extra-terrestrial visitation on earth and the impact of those visitations on human culture, technology and history. Compiled by mysterious Swiss ethno-archeologist Yves Naud for the equally cryptic 'Friends of History'.