Comfort, J. C. (1975). A flexible efficient computer system to answer human questions: A flexible efficient computer system to answer human questions : THE DL PROGRAMMING LANGUAGE FOR ARTIFICIAL INTELLIGENCE APPLICATIOS (1. izd.). Birkhaeuser Verlag.
Chicago stil citiranjaComfort, John Craig. A flexible efficient computer system to answer human questions: A flexible efficient computer system to answer human questions : THE DL PROGRAMMING LANGUAGE FOR ARTIFICIAL INTELLIGENCE APPLICATIOS. 1. izd. Birkhaeuser Verlag, 1975.
MLA stil citiranjaComfort, John Craig. A flexible efficient computer system to answer human questions: A flexible efficient computer system to answer human questions : THE DL PROGRAMMING LANGUAGE FOR ARTIFICIAL INTELLIGENCE APPLICATIOS. 1. izd. Birkhaeuser Verlag, 1975.