000 00900nam a2200253 a 4500
008
049 _aMAIN
090 _aRA1270.P4
100 1 _aBasopo, Norah
245 1 0 _aEffects of pesticides on esterase activity of two species of freshwater snails helisoma duryi and lymnaea natalensis /
_cN. Basopo.
260 _aBulawayo :
_bNatioanl University of Science and Technology,
_c2007
300 _axx, 197 p.:
_bill. (some col.);
_c28 cm.
500 _aIncludes bibliographical references.
500 _aThesis(PhD)---NUST,2007.
650 _aPesticides.
650 _aFreshwater snails
650 1 _aWater. Aquatic biology.
700 _aNUST.
_bDepartment of Applied Biology and Biochemistry
_tThesis (PhD)
907 _a.b10258449
_b27-11-08
_c26-11-08
003
005 20230120153123.0
040 _cNUST
942 _cBOOKS
_kRA1270.P4
999 _c99111
_d99111