000 00287nam a2200109 4500
245 _aAnnual report
100 _aNational Environmental Engineering.
260 _aNagpur
_bThe Author
_c1985
300 _av.; 28cm.
500 _aLibrary has Annual report 1984/85
082 _aDB
_b628.0954 NAT
999 _c47344
_d47344