TY  - GEN
AU  - Qazi,S.A.
AU  - Qazi,Navaqid Shabir
TI  - Natural resource conservation
SN  - 8131300889
U1  - 333.7 
PY  - 2007///
CY  - New Delhi
PB  - APH Publishing Corporatioon
N1  - includes bibliographical refrences and index
ER  -