DATE, C. (2006). AN INTRODUCTION TO DATABASE SYSTEMS 7TH ED. PEARSON.
Chicago Style aipamenaDATE, C.J. AN INTRODUCTION TO DATABASE SYSTEMS 7TH ED. NEW DELHI: PEARSON, 2006.
MLA aipamenaDATE, C.J. AN INTRODUCTION TO DATABASE SYSTEMS 7TH ED. PEARSON, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.