@article{vanRensburg:321605,
      recid = {321605},
      author = {van Rensburg, H.J. and Burger, O.E.},
      title = {Statistics},
      journal = {Agrekon},
      address = {1965-07},
      year = {1965},
      url = {http://ageconsearch.umn.edu/record/321605},
      doi = {https://doi.org/10.22004/ag.econ.321605},
}