@article{Wirth:157220,
      recid = {157220},
      author = {Wirth, Willis W. and Jones, Robert H.},
      title = {The North American Subspecies of Culicoides variipennis},
      address = {1957},
      number = {1488-2016-124045},
      series = {Technical Bulletin},
      pages = {41},
      year = {1957},
      url = {http://ageconsearch.umn.edu/record/157220},
      doi = {https://doi.org/10.22004/ag.econ.157220},
}