00515nam a2200181Ia 450000500170000000800410001704000190005804100120007708200130008910000240010224500750012626000270020130000160022844000370024465000120028170000300029385000100032320240606100138.0131103s9999    xx            000 0 und d  aLoreto College  aEnglish  a570bHEA  aHeafford, Philip E.  aHeating and coolingcPhilip E. Heafford; edited by Charles H. Dobinson  aLondonbLongmansc1963  a96p.b ill.  aScience on the march unit eleven  aScience  aDobinson, Charles H.; ed.  aLCBED