BibTeX:
@incollection{Bahperiodical1919,
  author = {Bahá'í periodical (1910-1924)},
  title = {The Day the Friends Were Given: How the Day of the Covenant Began},
  booktitle = {Star of the West},
  year = {1919},
  publisher = {Bahá'í News Service},
  url = {https://bahai.works/Star_of_the_West},
}

APA:
Bahá'í periodical (1910-1924). (1919). The Day the Friends Were Given: How the Day of the Covenant Began. In *Star of the West*. Bahá'í News Service.

MLA:
Bahá'í periodical (1910-1924). "The Day the Friends Were Given: How the Day of the Covenant Began." *Star of the West*, Bahá'í News Service, 1919.

Chicago:
Bahá'í periodical (1910-1924). "The Day the Friends Were Given: How the Day of the Covenant Began." In *Star of the West*, Bahá'í News Service, 1919.