001: 622
003: Starlibrary PMS 4.5
005: 20180430
020: ^a81-7029-104-6
066: ^aCa.T
072: ^afacts
082: ^a001.6
100: ^aCarl Townswnd
240: ^aTntroduction to Turbo prolog
245: ^aTntroduction to Turbo prolog
260: ^c1988
650: ^aobjects
650: ^aand predicates
650: ^aprolog variables
650: ^ausing turbo prolog