BibTeX:
@incollection{Various,
  author = {Various},
  title = {East and West at the Hotel Rittenhouse},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/unity},
}

APA:
Various. East and West at the Hotel Rittenhouse. In *bahaistories.com archive*.

MLA:
Various. "East and West at the Hotel Rittenhouse." *bahaistories.com archive*, n.d..

Chicago:
Various. "East and West at the Hotel Rittenhouse." In *bahaistories.com archive*, n.d..