CrowderN. A.Automatic tutoring by means of intrinsic programming. in GalanterE. (Ed.) Automatic teaching: The state of the art.New York: Wiley, 1959, pp. 109–116.
2.
CrowderN. A.The arithmetic of computers. New York: Doubleday, 1960 (in press).
3.
CrowderN. A., & MartinG. C.Adventures in algebra. New York: Doubleday, 1960.
4.
GorenC. H.The elements of bridge. New York: Doubleday, 1960.
5.
HommeL., & GlaserR.Relationships between the programmed textbook and teaching machines. in GalanterE. (Ed.) Automatic teaching: The state of the art.New York: Wiley, 1959, pp. 103–108.
6.
HughesR. J., & PipeP.Introduction to electronics. New York: Doubleday, 1960.