BibTeX:
@incollection{Various,
  author = {Various},
  title = {Navváb in the Days of the Síyáh-Chál},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/detachment},
}

APA:
Various. Navváb in the Days of the Síyáh-Chál. In *bahaistories.com archive*.

MLA:
Various. "Navváb in the Days of the Síyáh-Chál." *bahaistories.com archive*, n.d..

Chicago:
Various. "Navváb in the Days of the Síyáh-Chál." In *bahaistories.com archive*, n.d..