APA-referens (7:e uppl.)

Krekel, C., Swanke, S., De Neve, J., & Fancourt, D. (2023). Happiness predicts compliance with preventive health behaviours during COVID-19 lockdowns. Springer Nature.

Chicago-referens (17:e uppl.)

Krekel, C., S. Swanke, J-E De Neve, och D. Fancourt. Happiness Predicts Compliance with Preventive Health Behaviours During COVID-19 Lockdowns. Springer Nature, 2023.

MLA-referens (9:e uppl.)

Krekel, C., et al. Happiness Predicts Compliance with Preventive Health Behaviours During COVID-19 Lockdowns. Springer Nature, 2023.