000 00514nam a2200169Ia 4500
999 _c83554
_d83554
005 20190730124726.0
008 190521s9999||||xx |||||||||||||| ||und||
020 _a9789352920853
_cRs.
040 _aNITIL
_cNITIL
082 _223rd
_a570.724
_bN277P
110 _aNational Council of Education Research and Training
245 0 _aPrayogshala pustika
260 _aNew Delhi
_bNational Council of Education Research and Training
_c2018
300 _axi,184p.
_c23cm
650 _aSCIENCE
942 _cBKS
_2ddc
_e23rd