TY  - BOOK
AU  - lioyd,J.R.
TI  - Man and the ecosystem
SN  - 0333260988
AV  - TD881,W66 1989 
PY  - 1980///
CY  - Hemipshire
PB  - Macmillian education
KW  - Ecology
KW  - Foundation of biology
ER  -