00283 a2200109 4500082001300000100002500013245004400038260003500082300002100117650001200138700002300150 a530bHAR aHarnwell, Gaylord P. aPhysicsbmatter energy and the universe aNew YorkbReinholdc1967g1967 axv, 557p.c26cm. aPhysics aLegge, George J.F.