000			00300nam a22001457a 4500
999			_c419429 _d419429
003			OSt
020			_a9788187134701
082			_a621.36 _bGUP
100			_aGupta, A. B.
245			_aModern optics _bA.B. Gupta
250			_a4th
300			_a728p.
650			_aApplied Physics
942			_2ddc _cBK