TY  - BOOK
AU  - Wales ,C.E.
TI  - Guided engineering design an introduction to engineering calculations
SN  - 0829903534
AV  - TA 330 .W3 1981 
PY  - 1974///
CY  - New York  L
PB  -  West Pub 
KW  - Engineering - Mathematics- Programed Instructions
ER  -