Thick North American Aviation training manual for the Apollo Command/Service Module Propulsion Subsystem, issued on April 22, 1966. The title page depicts the CSM and reads: "Apollo Training: Propulsion Subsystem, Student Study Guide, Part I, Course Number C3-A412." The manual contains 'slides' detailing the propulsion system with illustrations, diagrams, and text, covering the Service Propulsion System and Reaction Control System, as well as its displays and controls. In very good condition, with an ownership notation to the cover ("E. M. Jones"), toning and edgewear to wrappers, and creasing to title page. An interesting manual which offers a comprehensive overview of the Apollo Command/Service Module's propulsion systems.