Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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