000			00397nam a2200157Ia 4500
008			190327s9999||||xx |||||||||||||| ||und||
040			_aNITIL _cNITIL
082			_221st _a530 _bB286B
100			_aBarthora, J R
245		0	_aBhautik vigyan _cJ R Barthora
260			_aJaipur _bScience _c1993
300			_a407p.
650			_aPhysics; Gravitation; Optics
700			_aSingh, Y P
942			_cBKS
999			_c53338 _d53338