TY  - BOOK
AU  - Hall,Charles A.S.
AU  - Day,John W.
TI  - Ecosystem modeling in theory and practice: an introduction with case histories 
SN  - 0471341657
PY  - 1977///
CY  - New York
PB  - Wiley
N1  - "A Wiley-Interscience publication."
ER  -