TY  - BOOK
AU  - Mitsch, William J. (Editor)
AU  - Jørgensen,Sven Erik
TI  - Ecological engineering: an introduction to ecotechnology 
SN  - 0471625590
AV  - TD153 .Ec7 1989
PY  - 1989///
CY  - New York 
PB  - John Wiley & sons Inc.
N1  - Includes bibliographical references and index
ER  -