00252nam a2200109Ia 4500 211209s9999 xx 000 0 und d 9788121924962.00 eng MEHATA PRINCIPLES OF POWER SYSTEM S CHAND 0 0 0 0 RIT RIT 2022-01-01 615.00 3 87012 2026-03-23 09:30:32 2026-02-24 2022-01-01 BK 87012 87012