Ehricke, Krafft A. Space Flight, Vol. II. Dynamics. Principles of Guided Missile Design Series, edited by Grayon Merrill. Cooper used this volume to assist his implementation of orbital mechanics during his Mercury and Gemini space flights. The chapter on lunar flights was useful during his Apollo training. 4to, cloth with dust jacket. Princeton: D. Van Nostrand Co. Inc.., 1960
