@article{gupta:1970:omr,
    author = {Gupta, Baikunth N.},
     title = {On {M}ill's ratio},
   journal = {Proc. Cambridge Philos. Soc.},
    volume = {67},
      year = {1970},
     pages = {363–364},
   mrclass = {60.20},
  mrnumber = {MR0256432 (41 \#1088)},
mrreviewer = {C. G. Esseen},
     zblno = {0206.19602}}