TY - BOOK N2 - An explanation of the usual reasons for confusing IFOs (identified flying objects) with UFOs and a survey of the tools used to investigate reported UFO sightings. AB - An explanation of the usual reasons for confusing IFOs (identified flying objects) with UFOs and a survey of the tools used to investigate reported UFO sightings. T1 - The UFO handbook :a guide to investigating, evaluating, and reporting UFO sightings / DA - 1979. CY - Garden City, N.Y. : AU - Hendry, Allan. ET - 1st ed. CN - TL789 CN - TL789 PB - Doubleday, PP - Garden City, N.Y. : PY - 1979. ID - 452433 KW - Unidentified flying objects. SN - 0385143486 (pbk.) SN - 9780385143486 (pbk.) TI - The UFO handbook :a guide to investigating, evaluating, and reporting UFO sightings / ER -