TY  - BOOK
AU  - Benefield, Larry D.
AU  - Randall, Clifford W.
TI  - Biological Process Design for Wastewater Treatment 
U1  - 628.30574 
PY  - 1980///
CY  - Englewood Cliffs, Nj : 
PB  - Prentice-Hall, 
N1  - NN
ER  -