Apollo guidance and navigation : R-393 logical description for the Apollo Guidance Computer (AGC 4)
Massachusetts Institute of Technology (MIT) Instrumentation Laboratory
"This report was prepared under the auspices of DSR Project 55-191, sponsored by the Manned Spacecraft Center of the National Aeronautics and Space Administration through contract NAS9-153."--verso of title page. Illustrations include the general block diagram and other diagrams.