APA (7th ed.) Citation

Gardner, C. (2012). Shadowing. Perspectives in Biology and Medicine, 55(3), 435. https://doi.org/10.1353/pbm.2012.0026

Chicago Style (17th ed.) Citation

Gardner, Caleb. "Shadowing." Perspectives in Biology and Medicine 55, no. 3 (2012): 435. https://doi.org/10.1353/pbm.2012.0026.

MLA (9th ed.) Citation

Gardner, Caleb. "Shadowing." Perspectives in Biology and Medicine, vol. 55, no. 3, 2012, p. 435, https://doi.org/10.1353/pbm.2012.0026.