Havranek, C. E., & Harris, S. (2020). Butterfly count surveys in field margins at Ditchley Park, Oxfordshire, UK, June - July 2016. University of Oxford.
Chicago-čujuhus (17. p.)Havranek, C E., juo S. Harris. Butterfly Count Surveys in Field Margins at Ditchley Park, Oxfordshire, UK, June - July 2016. University of Oxford, 2020.
MLA-čujuhus (9. p.)Havranek, C E., juo S. Harris. Butterfly Count Surveys in Field Margins at Ditchley Park, Oxfordshire, UK, June - July 2016. University of Oxford, 2020.
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