BibTeX:
@incollection{Various,
  author = {Various},
  title = {Poverty in London and New York},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/poverty},
}

APA:
Various. Poverty in London and New York. In *bahaistories.com archive*.

MLA:
Various. "Poverty in London and New York." *bahaistories.com archive*, n.d..

Chicago:
Various. "Poverty in London and New York." In *bahaistories.com archive*, n.d..