BibTeX:
@incollection{StaroftheWestEditors1911,
  author = {Star of the West Editors},
  title = {A Soul Aflame: Louis Gregory in London, 1911},
  booktitle = {Star of the West},
  year = {1911},
  publisher = {Bahai News Service},
  url = {https://bahai-library.com/star_of_the_west_volume_1},
}

APA:
Star of the West Editors. (1911). A Soul Aflame: Louis Gregory in London, 1911. In *Star of the West*. Bahai News Service.

MLA:
Star of the West Editors. "A Soul Aflame: Louis Gregory in London, 1911." *Star of the West*, Bahai News Service, 1911.

Chicago:
Star of the West Editors. "A Soul Aflame: Louis Gregory in London, 1911." In *Star of the West*, Bahai News Service, 1911.