APA引文

London, M. (2021). The spread of COVID-19. Core Library.

Chicago Style (17th ed.) Citation

London, Martha. The Spread of COVID-19. Minneapolis, Minnesota: Core Library, 2021.

MLA引文

London, Martha. The Spread of COVID-19. Core Library, 2021.

警告：這些引文格式不一定是100％准確.