@book{hastings:1955:adc,
    author = {Hastings, Jr., Cecil},
     title = {Approximations for Digital Computers},
      note = {Assisted by Jeanne T. Hayward and James P. Wong, Jr.},
 publisher = {Princeton University Press},
   address = {Princeton, N. J.},
      year = {1955},
     pages = {viii+201},
   mrclass = {65.0X},
  mrnumber = {MR0068915 (16,963e)},
mrreviewer = {P. W. Ketchum},
     zblno = {0066.10704}}