000			00435nam a2200157Ia 4500
008			190327s9999||||xx |||||||||||||| ||und||
040			_aNITIL _cNITIL
082			_221st _a507 _bJ25V
100			_aJain, M K
245		0	_aVigyan shikshan _cM K Jain
260			_aJaipur _bRajasthan _c1993
300			_aii, 162p.
650			_aScience-Study and teaching (Secondary); Education-Curricula; Ecology
700			_aDixit, K C
942			_cBKS
999			_c53308 _d53308