BibTeX:
@incollection{Various,
  author = {Various},
  title = {Father of the Poor},
  booktitle = {Baha'i Stories for Children},
  url = {https://bahaistoriesforchildren.blogspot.com/2017/09/father-of-poor.html},
}

APA:
Various. Father of the Poor. In *Baha'i Stories for Children*.

MLA:
Various. "Father of the Poor." *Baha'i Stories for Children*, n.d..

Chicago:
Various. "Father of the Poor." In *Baha'i Stories for Children*, n.d..