E. P. Dutton, 1972. Hardcover with dustjacket, first edition. Second in the "Exiles" series, which also includes "Exiled from Earth" (1971) and "End of Exile" (1975). The three novels were later collected as "The Exiles Trilogy." COLLECTOR'S NOTE: This title is commonly found as an ex-library book; quite collectible when found otherwise.
Used availability for Ben Bova's Flight of Exiles
September 1972 : USA Hardback