BibTeX:
@incollection{BahChronicleseditors,
  author = {Bahá'í Chronicles editors},
  title = {Siyyid Mirza Husayn-i-Mutavalli},
  booktitle = {Bahá'í Chronicles},
  url = {https://bahaichronicles.org/siyyid-mirza-husayn-i-mutavalli/},
}

APA:
Bahá'í Chronicles editors. Siyyid Mirza Husayn-i-Mutavalli. In *Bahá'í Chronicles*.

MLA:
Bahá'í Chronicles editors. "Siyyid Mirza Husayn-i-Mutavalli." *Bahá'í Chronicles*, n.d..

Chicago:
Bahá'í Chronicles editors. "Siyyid Mirza Husayn-i-Mutavalli." In *Bahá'í Chronicles*, n.d..