APA (7th ed.) Citation

Gerbaldi, M., & Faraggiana, R. (2008). Duplicity Among λ Boo Stars: The New Case of HD 204041. Proceedings of the International Astronomical Union, 2(S240), 542. https://doi.org/10.1017/S1743921307006138

Chicago Style (17th ed.) Citation

Gerbaldi, M., and R. Faraggiana. "Duplicity Among λ Boo Stars: The New Case of HD 204041." Proceedings of the International Astronomical Union 2, no. S240 (2008): 542. https://doi.org/10.1017/S1743921307006138.

MLA (9th ed.) Citation

Gerbaldi, M., and R. Faraggiana. "Duplicity Among λ Boo Stars: The New Case of HD 204041." Proceedings of the International Astronomical Union, vol. 2, no. S240, 2008, p. 542, https://doi.org/10.1017/S1743921307006138.