APA-ийн эшлэл(7 дахь хэвлэлт)

Havranek, C. E., & Harris, S. (2020). Butterfly count surveys in field margins at Ditchley Park, Oxfordshire, UK, June - July 2016. University of Oxford.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Havranek, C E., ба S. Harris. Butterfly Count Surveys in Field Margins at Ditchley Park, Oxfordshire, UK, June - July 2016. University of Oxford, 2020.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Havranek, C E., ба S. Harris. Butterfly Count Surveys in Field Margins at Ditchley Park, Oxfordshire, UK, June - July 2016. University of Oxford, 2020.