APA (7th ed.) Citation

Singer, A. (2020). Sentinels in sewage. Biologist, 67(5), 20.

Chicago Style (17th ed.) Citation

Singer, Andrew. "Sentinels in Sewage." Biologist 67, no. 5 (2020): 20.

MLA (9th ed.) Citation

Singer, Andrew. "Sentinels in Sewage." Biologist, vol. 67, no. 5, 2020, p. 20.

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