00313nam a22000977a 4500008004100000040005500041245004900096260004400145300001000189650001600199230705b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  aEngineering: bAn illustrated weekly journal  aBedford: bJohn Alexander Dixon, c1949  a296p.  aEngineering