00506cam a22001811  4500001000800000005001700008008004100025010001700066035001800083040002500101041000800126042001200134080001500146082001500161100000700176101000800183245013300191750915320180309034344.0730705s1963    ilua          000 0 eng    a   63016889   a(OCoLC)652245  aDLCcOClUdNcRSdDLC  aeng  apremarc  a651.74 MEN  a651.74 MEN1 a57  aBIZ10aCommunicating through letters and reportsc[by] J. H. Menning and C. W. Wilkinson. With the assistance of Dorothy Colby Menning.