The Philadelphia yellow fever epidemic of 1793.

MLA

Foster, K. R., et al. “The Philadelphia Yellow Fever Epidemic of 1793.” Scientific American, vol. 279, no. 2, Aug. 1998, pp. 88–93. EBSCOhost, https://doi.org/10.1038/scientificamerican0898-88.

APA

Foster, K. R., Jenkins, M. F., & Toogood, A. C. (1998). The Philadelphia yellow fever epidemic of 1793. Scientific American, 279(2), 88–93. https://doi.org/10.1038/scientificamerican0898-88

Chicago

Foster, K R, M F Jenkins, and A C Toogood. 1998. “The Philadelphia Yellow Fever Epidemic of 1793.” Scientific American 279 (2): 88–93. doi:10.1038/scientificamerican0898-88.