TY  - BOOK
AU  - Simmons,Ian Gordon
AU  - Simmons,Carol
TI  - Resource systems
T2  - Aspects of geography
SN  - 0333152468
PY  - 1974///
CY  - London
PB  - MacMillan
KW  - Natural resources
N1  - Bibliograhpy.: p.48
ER  -