@article{Benjamin:136512,
      recid = {136512},
      author = {Benjamin, Gary L. and Singer, Mike A.},
      title = {Ag Letter},
      journal = {AgLetter},
      address = {1995-07},
      number = {819-2016-52700},
      series = {No. 1866},
      year = {1995},
      url = {http://ageconsearch.umn.edu/record/136512},
      doi = {https://doi.org/10.22004/ag.econ.136512},
}