TY  - BOOK
AU  - Huggins, W. H.
AU  - Entwisle, Doris R.
TI  - Introductory systems and design
T2  - Blaisdell Book in the Pure and Applied Sciences
U1  - 620.72 
PY  - 1968///
CY  - Waltham
PB  - Blaisdell
ER  -