BibTeX:
@incollection{BahChronicleseditors,
  author = {Bahá'í Chronicles editors},
  title = {Siyyid Ismá‘íl of Zavárih},
  booktitle = {Bahá'í Chronicles},
  url = {https://bahaichronicles.org/siyyid-ismail/},
}

APA:
Bahá'í Chronicles editors. Siyyid Ismá‘íl of Zavárih. In *Bahá'í Chronicles*.

MLA:
Bahá'í Chronicles editors. "Siyyid Ismá‘íl of Zavárih." *Bahá'í Chronicles*, n.d..

Chicago:
Bahá'í Chronicles editors. "Siyyid Ismá‘íl of Zavárih." In *Bahá'í Chronicles*, n.d..