TY  - BOOK
AU  - Riggs, James L.
AU  - Bedworth, David D.
AU  - Randhawa, Sabah U.
TI  - Engineering Economics 
SN  - 0070586705
U1  - 658.1596 
PY  - 2004///
CY  - New Delhi : 
PB  - Tata McGraw-Hill, 
KW  - Engineering Economy
N1  - YY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-07-058670-5.pdf
ER  -