TY  - BOOK
AU  - Blank, Leland and Tarquin, Anthony 
TI  - Basics of engineering economy 
SN  - 9781259064814
U1  - 658.11 BLA  
PY  - 2013///
CY  - Mcgraw hill book company 
PB  - New Delhi 
KW  - ENVIRONMENTAL STUDIES
ER  -