BibTeX:
@incollection{Various,
  author = {Various},
  title = {The Poor Woman's Coin},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/integrity},
}

APA:
Various. The Poor Woman's Coin. In *bahaistories.com archive*.

MLA:
Various. "The Poor Woman's Coin." *bahaistories.com archive*, n.d..

Chicago:
Various. "The Poor Woman's Coin." In *bahaistories.com archive*, n.d..