00314nam a2200133Ia 4500008004100000041001200041082002200053100001600075245001900091250001200110260003000122300000900152650001900161231217s9999    xx            000 0 und d  aEnglish  a621.312  UPP;5  R  aUppal, S L. 0aElectric power  a3rd ed.  c1990bNew Delhi : Khanna,  a1740  aElectric power