00511nam a2200217Ia 4500008004000000041000800040082001100048100002700059245005400086250000500140260004000145300001200185650001500197650001000212650001300222650001400235650000900249650000700258650000600265700002200271210210b1955   xxu||||| |||| 00| 0 eng d  aeng  a532/87  aSEARS (Francis Weston)  aUniversity physics: mechanics heat and sound Ed 2  a  aMassachusettsbAddison-Wesleyc1955  avii,475  aUniversity  asound  aphysics:  amechanics  aheat  aEd  a2  aZEMANSKY (Mark W)