Tyugu, Enn. Kh. Knowledge-based programming / Enn Tyugu. - Workingham, England ; Turing Institute Press in association with Addison-Wesley, 1987, c1988. - xii, 243 p. : - Turing Institute Press knowledge engineering tutorial series . ISBN: 020117815X Subjects--Topical Terms: Artificial intelligence Dewey Class. No.: 006.33 / Kn