00269nam a2200121 a 450000500170000002000150001708200220003210000170005424500220007125000110009326000240010430000190012820251203090447.0  a052124952X  a530.0724,bD, squ  aSquires, G.L  aPractical physics  a3rd ed  aNew YorkbCUPc1985  axii,215p, 22cm