BibTeX:
@incollection{StaroftheWestEditors1925,
  author = {Star of the West Editors},
  title = {The First National Spiritual Assembly of America},
  booktitle = {Star of the West},
  year = {1925},
  publisher = {Bahai News Service},
  url = {https://bahai-library.com/star_of_the_west_volume_16},
}

APA:
Star of the West Editors. (1925). The First National Spiritual Assembly of America. In *Star of the West*. Bahai News Service.

MLA:
Star of the West Editors. "The First National Spiritual Assembly of America." *Star of the West*, Bahai News Service, 1925.

Chicago:
Star of the West Editors. "The First National Spiritual Assembly of America." In *Star of the West*, Bahai News Service, 1925.