एपीए उद्धरण

Xu, J., Shang, L., & Cao, B. (2020). Guarding a city from the COVID-19 pandemic. Lancet Digit Health.

शिकागो स्टाइल उद्धरण

Xu, Jiuyang, Lianhan Shang, और Bin Cao. "Guarding a City From the COVID-19 Pandemic." Lancet Digit Health 2020.

एमएलए उद्धरण

Xu, Jiuyang, Lianhan Shang, और Bin Cao. "Guarding a City From the COVID-19 Pandemic." Lancet Digit Health 2020.