00347nam a22001217a 450000500170000000800410001702000150005805000120007310000170008524500650010226000330016730000250020020260313133926.0260313b        |||||||| |||| 00| 0 eng d  a0856263311  aQA76.C4  aClare, C .P.  aData processing current theories and practicescClare, C .P.  aEngland bAbacus pressc1983  axiv, 355p, ;illbhbk