TY  - BOOK
AU  - 
AU  - 
TI  - National Conference on Environnmental Engineering
U1  - 628.5 
PY  - 1982///
CY  - Minmncapolis
PB  - American society of Civil Engineers
KW  - Environmental engineering
N1  -  Proceedings, ed by Walter K. Johnson and Dennis R Martenson. New York American Society of Civil Engieers, 1982
ER  -