TY  - BOOK
AU  - Simmons I G
TI  - Ecology of natural resources
SN  - 0 713163283  Pbk
U1  - U671, L4;M1/TD3 
PY  - 1981///
CY  - London
PB  - E L B S U K     
KW  - Geography
N1  - Bibliography: p 377-416
ER  -