TY  - BOOK
AU  - 3G E-learning 
TI  - Core Concepts in Engineering: Mechanical Engineering 
SN  - 978-1-98462-044-6
U1  - Cir. 621.815 C797 C2019 
PY  - 2019///
CY  - New York, USA: 
PB  - 3G E-learning LLC
ER  -