Agent Technology from a NASA Perspective. - Walt Truszkowski; Harold L. Hallock; James Kurien (CIA, 1999)

Autonomous and Autonomic Systems: With Applications to NASA Intelligent Spacecraft Operations and Exploration Systems - Walt Truszkowski; Harold L. Hallock; Christopher A. Rouff; Jay Karlin; James L. Rash; Michael G. Hinchey; Roy Sterritt (Springer, 2010)

ACS Without an Attitude - Harold L. Hallock; Gary Welter; David G. Simpson; Christopher A. Rouff (Springer, 2017)