00259nam a2200109Ia 4500008004100000041001200041082001100053100001600064245005700080260000600137650000600143221030s9999    xx            000 0 und d  aEnglish  a105.23  aS. K. Gupta 0aEngineering Physics Vol. III- Opticscby S. K. Gupta  c0  aB