000 00412nam a2200109Ia 4500
008 200508s9999||||xx |||||||||||||| ||und||
082 _a333.7
_bTRI
100 _aTrivedi, Priya Ranjan & others
_974953
245 0 _aInternational encyclopaedia of ecology and environment. Vol.9 : research methodology and systems analysis.
260 _aNew Delhi
_bIndian Inst. of Ecology & Environment
_c1994
300 _aix,158p.
999 _c59585
_d59585