00749nam a22002171 4500 1/2483 931026s1988 xxu 001 0 eng d 2640 DLC GR-PeUP 005 74 UL Ullman, Jeffrey D., 1942- Principles of database and knowledge-base systems / Jeffrey D. Ullman.- Maryland: Computer Science Press, c1988. xi, 631p.: fig.; 24cm.- Principles of computer Science series ; Index. Bibliography. Data base management. Expert systems (Computer science). Principles of computer Science series. INST UNIPILB MAIN 20040709 005 74 UL 00122986 00122986 LOAN 0 1