BibTeX:
@incollection{BahChronicleseditors,
  author = {Bahá'í Chronicles editors},
  title = {Mullá ‘Alí Basṭámí, the First Bábí Martyr},
  booktitle = {Bahá'í Chronicles},
  url = {https://bahaichronicles.org/mulla-ali-bastami/},
}

APA:
Bahá'í Chronicles editors. Mullá ‘Alí Basṭámí, the First Bábí Martyr. In *Bahá'í Chronicles*.

MLA:
Bahá'í Chronicles editors. "Mullá ‘Alí Basṭámí, the First Bábí Martyr." *Bahá'í Chronicles*, n.d..

Chicago:
Bahá'í Chronicles editors. "Mullá ‘Alí Basṭámí, the First Bábí Martyr." In *Bahá'í Chronicles*, n.d..