TY  - BOOK
AU  - Chand, Attar
TI  - Environmental challenges : industry forestry,  pollution, agriculture, energy crisis,  urbanisation population, economic planning and  ecological order : a global survey
U1  - 620.8 
PY  - 1985///
CY  - Delhi
PB  - UDH Publishers
N1  - Bibliogaphic survey with obstracts from 1960 to  1984
ER  -