000 00291nam a2200109Ia 4500
008 220321s9999 xx 000 0 und d
100 _aA K Shrivastava
245 2 _aA Hand book for teachers: Research in teaching of Ecology
260 _aDelhi, A.P.H Pub
_c2012
300 _a205
942 _cRF
999 _c9926
_d9926