BibTeX:
@incollection{Various,
  author = {Various},
  title = {A Birthday Cake in the Bronx},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/forgiveness-others},
}

APA:
Various. A Birthday Cake in the Bronx. In *bahaistories.com archive*.

MLA:
Various. "A Birthday Cake in the Bronx." *bahaistories.com archive*, n.d..

Chicago:
Various. "A Birthday Cake in the Bronx." In *bahaistories.com archive*, n.d..