00716cam a2200193 4500 606405020 TxAuBib 20151006120000.0 710907s1971||||||||||||||||||||||||eng|u 77155993 /AC TxAuBib Kettelkamp, Larry. Investigating UFO's / Illustrated with photos. New York : Morrow, [1971] 96 p. : illus ; 22 cm. Explores the controversial topic of UFO's including accounts of government and civilian studies on them, descriptions of reported sightings, and possible explanations for them. Unidentified flying objects. Unidentified flying objects. Juvenile literature. TXNAV