@article{Sloan:286736,
      recid = {286736},
      author = {Sloan, Roby},
      title = {Agricultural Letter},
      journal = {Agricultural Letter},
      address = {1965-12-31},
      series = {837},
      month = {Dec},
      year = {1965},
      url = {http://ageconsearch.umn.edu/record/286736},
      doi = {https://doi.org/10.22004/ag.econ.286736},
}