TY  - BOOK
AU  - Simmons,I.G.
TI  - The ecology of natural resources
SN  - 071315733X :
AV  - MED QH541.2 S5
PY  - 1974///
CY  - London
PB  - Arnold
KW  - Human ecology
KW  - Natural resources
N1  - Includes index
ER  -