Ullman, Jeffrey D.
Principles of database and knowledge - base systems, volume 1 : classical database systems - Maryland Comp. Sc. Press 1988 - xi, 631 s.
COMPUTERS DATA BASES DOCUMENTATION INFORMATION PROCESSING INFORMATION SCIENCE
004.24
Principles of database and knowledge - base systems, volume 1 : classical database systems - Maryland Comp. Sc. Press 1988 - xi, 631 s.
COMPUTERS DATA BASES DOCUMENTATION INFORMATION PROCESSING INFORMATION SCIENCE
004.24