BibTeX:
@incollection{BahChronicleseditors,
  author = {Bahá'í Chronicles editors},
  title = {A Temple of Light and Unity: Louis Bourgeois and the Mother Temple of the West},
  booktitle = {Bahá'í Chronicles},
  url = {https://bahaichronicles.org/louis-bourgeois/},
}

APA:
Bahá'í Chronicles editors. A Temple of Light and Unity: Louis Bourgeois and the Mother Temple of the West. In *Bahá'í Chronicles*.

MLA:
Bahá'í Chronicles editors. "A Temple of Light and Unity: Louis Bourgeois and the Mother Temple of the West." *Bahá'í Chronicles*, n.d..

Chicago:
Bahá'í Chronicles editors. "A Temple of Light and Unity: Louis Bourgeois and the Mother Temple of the West." In *Bahá'í Chronicles*, n.d..