TY  - BOOK
AU  - Sale, Colin.
AU  - Friedman, Ben.
AU  - Wilson, Graeme.
TI  - Our changing world, Book 1: the vanishing natural ecosystems 
U1  - 910 SAL 23
PY  - 1980/// [Reprinted 1982]
CY  - Melbourne
PB  - Longman Cheshire
KW  - Geography
KW  - Nature
KW  - Effect of human beings on
ER  -