Παραπομπή σε μορφή APA (7η εκδ.)

Churchill, D., Nair, M., Stanworth, S., & Knight, M. (2019). The change in haemoglobin concentration between the first and third trimesters of pregnancy: A population study. BioMed Central.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Churchill, D., M. Nair, S. Stanworth, και M. Knight. The Change in Haemoglobin Concentration Between the First and Third Trimesters of Pregnancy: A Population Study. BioMed Central, 2019.

Παραπομπή σε μορφή MLA (9th εκδ.)

Churchill, D., et al. The Change in Haemoglobin Concentration Between the First and Third Trimesters of Pregnancy: A Population Study. BioMed Central, 2019.