TY  - BOOK
AU  - Artjur, Wallace
TI  - The green machine: ecology and the balance of nature 
SN  - 0-631-17853-8
PY  - 1990///
CY  - oxford 
PB  - Blackwell
KW  - Biotic communities
KW  - Ecology
KW  - Man-influence of nature
ER  -