Apollo 13 "Guidance and Navigation Summary" manual by AC Electronics, a Division of General Motors Corporation, 5.5 x 8.5, which features sections on "CM Software," "LM Software," "ASPO 45 CRT Displays," "Launch and Burn Schedule," "Burn Perturbations," and "Hardware," and contains numerous diagrams, instructions, lists, and code definitions related to the guidance and navigation systems used on the Apollo 13 lunar landing mission. In fine condition, with creasing to the spine from use.
