TY  - BOOK
AU  - Darling, F. Fraser
TI  - Wilderness and plenty
AV  - GF 75 Dar
PY  - 1970///
CY  - Boston
PB  - Houghton Mifflin
KW  -  Nature - Effect of human beings on
KW  - Conservation of natural resources
KW  - Pollution
ER  -