BibTeX:
@incollection{Various,
  author = {Various},
  title = {Guarding His Father on the Road},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/bahaullah-declaration},
}

APA:
Various. Guarding His Father on the Road. In *bahaistories.com archive*.

MLA:
Various. "Guarding His Father on the Road." *bahaistories.com archive*, n.d..

Chicago:
Various. "Guarding His Father on the Road." In *bahaistories.com archive*, n.d..