TY  - BOOK
AU  - 3G E-Learning 
TI  - Core concepts in computer science: Database management system 
SN  - 978-1-98462-064-4
U1  - Cir. 658.4038011 A77 C2019 
PY  - 2019///
CY  - New York
PB  - 3G E-Learning LLC 
ER  -