@article{Sloan:286746,
      recid = {286746},
      author = {Sloan, Roby},
      title = {Agricultural Letter},
      journal = {Agricultural Letter},
      address = {1966-03-11},
      series = {847},
      month = {Mar},
      year = {1966},
      url = {http://ageconsearch.umn.edu/record/286746},
      doi = {https://doi.org/10.22004/ag.econ.286746},
}