APA način citiranja

Butt, N., Arshid, A., Ahmad, S. A., Khalid, N., & Kayani, W. T. (2021). Cardiovascular complications in COVID-19. Am J Emerg Med.

Čikaški stil citiranja

Butt, Nausharwan, Awais Arshid, Sarah Aftab Ahmad, Nauman Khalid, i Waleed Tallat Kayani. "Cardiovascular Complications in COVID-19." Am J Emerg Med 2021.

MLA način citiranja

Butt, Nausharwan, et al. "Cardiovascular Complications in COVID-19." Am J Emerg Med 2021.