CONFIRMATION: THE HARD EVIDENCE OF ALIENS AMONG US

CONFIRMATION: THE HARD EVIDENCE OF ALIENS AMONG US Whitley Strieber (St. Martin's, $23.95) More than 10 years after chronicling his own close encounters in the best-seller Communion: A True Story, Strieber is running low on startling scenarios. In Confirmation, a typical Strieber sighting is ''four rather tired-looking people, quite small, wearing dark blue clothing.'' Let's face it, aliens that lackluster wouldn't survive an X-Files story conference. While the author says he's delivering scientific proof of galactic neighbors peering in our windows, this choppy book contains no smoking phaser, only unverifiable videotapes of spacecraft and unsubstantiated tales of midnight moves by some strange-eyed folk. Of interest only to those who've trekked to Roswell, N.M., in search of Area 51. D