APA-referens (7:e uppl.)

Harrison, S., Quigley, M., Fellmeth, G., Stein, A., & Alderdice, F. (2023). The impact of the Covid-19 pandemic on postnatal depression: Analysis of three population-based national maternity surveys in England (2014–2020). Elsevier.

Chicago-referens (17:e uppl.)

Harrison, S., MA Quigley, G. Fellmeth, A. Stein, och F. Alderdice. The Impact of the Covid-19 Pandemic on Postnatal Depression: Analysis of Three Population-based National Maternity Surveys in England (2014–2020). Elsevier, 2023.

MLA-referens (9:e uppl.)

Harrison, S., et al. The Impact of the Covid-19 Pandemic on Postnatal Depression: Analysis of Three Population-based National Maternity Surveys in England (2014–2020). Elsevier, 2023.