@article{Miller:136267, recid = {136267}, author = {Miller, Jeffrey L.}, title = {Agricultural Letter}, journal = {Agricultural Letter}, address = {1983-02}, number = {820-2016-53286}, series = {1597}, pages = {4}, year = {1983}, url = {http://ageconsearch.umn.edu/record/136267}, doi = {https://doi.org/10.22004/ag.econ.136267}, }