TY  - BOOK
AU  - Heald, Henry T
AU  - 
TI  - world of the engineer
U1  - 62 
PY  - 1970///
CY  - Washington
PB  - Voice of America
KW  - Engineering
KW  - Electronics
KW  - Civil engineering
KW  - Aeronautics
KW  - human engineering
KW  - Hydraulic engineering
KW  - Structural engineering
KW  - Technology
ER  -