@article{Sloan:286661,
      recid = {286661},
      author = {Sloan, Roby},
      title = {Agricultural Letter},
      journal = {Agricultural Letter},
      address = {1964-07-24},
      series = {762},
      month = {Jul},
      year = {1964},
      url = {http://ageconsearch.umn.edu/record/286661},
      doi = {https://doi.org/10.22004/ag.econ.286661},
}