00317nam a2200133Ia 4500003000400000008004100004020002300045040000800068100001800076245003700094260002800131300001300159365001100172LDD181029s9999    xx            000 0 und d  a8180300188c300.00  cLDD  aDhawan, D. K. 0aProblems in opticscD. K. Dhawan  aNew DelhibCampusc2006  av, 173p.  b300.00