BibTeX:
@incollection{Various,
  author = {Various},
  title = {A ‘Mrs C’ was an early believer who went to ‘Akká},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/spiritual-life},
}

APA:
Various. A ‘Mrs C’ was an early believer who went to ‘Akká. In *bahaistories.com archive*.

MLA:
Various. "A ‘Mrs C’ was an early believer who went to ‘Akká." *bahaistories.com archive*, n.d..

Chicago:
Various. "A ‘Mrs C’ was an early believer who went to ‘Akká." In *bahaistories.com archive*, n.d..