Washington, DC: National Aeronautics and Space Administration (NASA), 1969.
First Edition. Soft cover. Very Good. NASA Historical Series. 308 pp, indexed, with 131 illustrations, including many photographs. Light cover wear, original mailing label (Aerospace Research Laboratories, Wright Patterson Air Force Base) on back cover, "ARP" written on front cover. Contents clean, binding tight. An organizational and technological history of Project Gemini. "The most significant achievements of Gemini involved precision maneuvering in orbit and a major extension of the duration of manned space flights. This included the first rendezvous in orbit of one spacecraft with another and the docking of two spacecraft together" (from the Foreword).