00341nam a22001337a 450000500170000002000110001708200170002810000170004524500570006225000120011926000360013130000290016750000110019620260430073654.0  a(pbk.)  a621.3841 GIB  aGibbs, J. B.  aTransformer :bPrinciples & Practice /cJ. B. Gibbs.  a2nd ed.  aNew York :bMcGraw Hill,c1950.  ax,  249p. :bill ; 20cm.  aIndex.