TY  - BOOK
AU  - Ashworth William
AU  -  Little Charles E
TI  - Encyclopedia of environmental studies
T2  - Viva facts on file
SN  - 8130902362 (hbd)
U1  - G:55k, P6   RR 
PY  - 2006///
CY  - New Delhi    
PB  -  Viva Books Private Limited     
KW  -  Environmental studies-Encyclopedia
KW  - Biology
N1  - Bibliography 549-564p; Index 565-600p
ER  -