BibTeX:
@incollection{Various,
  author = {Various},
  title = {Christmas Night at the Salvation Army Shelter},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/generosity},
}

APA:
Various. Christmas Night at the Salvation Army Shelter. In *bahaistories.com archive*.

MLA:
Various. "Christmas Night at the Salvation Army Shelter." *bahaistories.com archive*, n.d..

Chicago:
Various. "Christmas Night at the Salvation Army Shelter." In *bahaistories.com archive*, n.d..