TY  - BOOK
T1  - Human impact on the ecosystem
T2  - Conceptual frameworks in geography
A1  - Tivy, Joy
A2  - O'Hare, Greg
LA  - English
PP  - Edinburgh, New York
PB  - Oliver & Boyd
YR  - 1982
UL  - https://tuklas.up.edu.ph/Record/UP-1685675941123736804
OP  - 243
CN  - GF 75 T58
KW  - Nature : Effect of human beings on.
KW  - Human ecology.
ER  -