APA (7th ed.) Citation

London, M. (2021). The spread of Covid-19. Abdo Publishing, a division of ABDO.

Chicago Style (17th ed.) Citation

London, Martha. The Spread of Covid-19. Minneapolis: Abdo Publishing, a division of ABDO, 2021.

MLA (9th ed.) Citation

London, Martha. The Spread of Covid-19. Abdo Publishing, a division of ABDO, 2021.

Warning: These citations may not always be 100% accurate.