Pattis, R. E., Roberts, J., & Stehlik, M. (1995). Karel the robot: A gentle introduction to the art of programming (2nd ed.). Wiley.
Chicago Style (17th ed.) CitationPattis, Richard E., Jim Roberts, and Mark Stehlik. Karel the Robot: A Gentle Introduction to the Art of Programming. 2nd ed. New York: Wiley, 1995.
ציטוט MLAPattis, Richard E., et al. Karel the Robot: A Gentle Introduction to the Art of Programming. 2nd ed. Wiley, 1995.
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