Citação norma APA

Chen, W., & Zhu, F. (2020). Challenges in the Development of a Vaccine Against COVID-19. Engineering (Beijing).

Citação norma Chicago

Chen, Wei, and Feng-Cai Zhu. "Challenges in the Development of a Vaccine Against COVID-19." Engineering (Beijing) 2020.

Citação norma MLA

Chen, Wei, and Feng-Cai Zhu. "Challenges in the Development of a Vaccine Against COVID-19." Engineering (Beijing) 2020.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.