@article{Sloan:286749,
      recid = {286749},
      author = {Sloan, Roby},
      title = {Agricultural Letter},
      journal = {Agricultural Letter},
      address = {1966-04-01},
      series = {850},
      month = {Apr},
      year = {1966},
      url = {http://ageconsearch.umn.edu/record/286749},
      doi = {https://doi.org/10.22004/ag.econ.286749},
}