00353nam a2200121Ia 4500008004100000041000800041082001800049100002200067245005200089250001200141260005000153650002800203230711s9999||||xx |||||||||||||| ||und||  aENG  a621.381bSP-O  aRobert G. Seippel 0aOptoelectronics for technicians and engineering  a1st Ed.  c1989aNew DelhibPHI Learning Private Limited  aElectronics Engineering