00421nam a2200133Ia 4500008004100000041000800041082001500049100001600064245007700080260000900157300000800166952009600174999001700270211209s1978 xx 000 0 und d aeng a621.47 RIC aRICHARD E P aTECHNICIANS AND EXPERIMENTOR'S GUIDE TO USING SUN, WIND AND WATER POWER  c1978 a270 00104070aRITbRITd2021-12-31l0o621.47 RICp13969r2021-12-31 00:00:00w2021-12-31yBK c13969d13969