TY  - BOOK
AU  - Davidson,Sam R.
TI  - Engineering economics: problems and solutions 
T2  - Arco professional career examination series
SN  - 0668058625 (pbk.) :
U1  - 338.5076 19
PY  - 1983///
CY  - New York
PB  - Arco Pub.
KW  - Engineering economy
KW  - Problems, exercises, etc
ER  -