Books, Brochures, and Chapters>Book:  Engelbart, Douglas and Engelbart, Douglas (October 1962), Augmenting Human Intellect, SRI Project 3578 for Air Force Office of Scientific Research, AF 49(638)-1024, Menlo Park, Retrieved on 2008-11-30

Source Material [sloan.stanford.edu]

Periodicals>Journal Article:  English, William and Engelbart, Douglas (1968), A Research Center for Augmenting Human Intellect, AFIPS Conference Proceedings 33, part 1, 395-410, Retrieved on -0001-11-30