@article{Gile:163573,
      recid = {163573},
      author = {Gile, Philip L.},
      title = {The Effect of Different Colloidal Soil Materials on the  Efficiency of Superphosphate},
      address = {1933-07},
      number = {1488-2016-123247},
      series = {Technical Bulletin},
      pages = {53},
      year = {1933},
      url = {http://ageconsearch.umn.edu/record/163573},
      doi = {https://doi.org/10.22004/ag.econ.163573},
}