Atack, Jon, A piece of blue sky : Scientology, Dianetics, and L. Ron Hubbard exposed / [print] by Jon Atack. - New York : Carol Pub. Group, (c)1990. - xi, 428 pages ; 24 cm. "A Lyle Stuart book." LCCN: 89077666 Subjects--Personal Names: Hubbard, L. Ron 1911-1986. Subjects--Corporate Names: Church of Scientology--History. Subjects--Topical Terms: Scientology--Controversial literature.Dianetics--Controversial literature. LC Class. No.: BP605 BP605.A862.P543 1990