APA (7th ed.) Citation

Hack, M. (1984). Epsilon Aurigae. Scientific American, 251, 98. https://doi.org/10.1038/scientificamerican1084-98

Chicago Style (17th ed.) Citation

Hack, Margherita. "Epsilon Aurigae." Scientific American 251 (1984): 98. https://doi.org/10.1038/scientificamerican1084-98.

MLA (9th ed.) Citation

Hack, Margherita. "Epsilon Aurigae." Scientific American, vol. 251, 1984, p. 98, https://doi.org/10.1038/scientificamerican1084-98.