(1989). Advanced Prolog: Techniques and examples / Peter Ross.
Chicago-čujuhus (17. p.)Advanced Prolog: Techniques and Examples / Peter Ross. 1989.
MLA-čujuhus (9. p.)Advanced Prolog: Techniques and Examples / Peter Ross. 1989.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.