TY  - GEN
AU  - Hey, Richard D.
AU  - Davies, Trevor D.
TI  - Science, technology and environmental management
SN  - 0347010873
U1  - 301.3 
PY  - 1975///
CY  - Farnborough, Hants
PB  - Saxon House & Lexington Books
KW  - Environmental engineering
ER  -