Clifford, J. (1980). Relational Query Graphs: A language for representing the meaning of a natural language database query.
Chicago-Zitierstil (17. Ausg.)Clifford, James. Relational Query Graphs: A Language for Representing the Meaning of a Natural Language Database Query. Stony Brook, New York, 1980.
MLA-Zitierstil (9. Ausg.)Clifford, James. Relational Query Graphs: A Language for Representing the Meaning of a Natural Language Database Query. 1980.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.