BibTeX:
@incollection{Various,
  author = {Various},
  title = {The Shepherd’s Dream},
  booktitle = {Baha'i Stories for Children},
  url = {https://bahaistoriesforchildren.blogspot.com/2015/04/the-shepherds-dream.html},
}

APA:
Various. The Shepherd’s Dream. In *Baha'i Stories for Children*.

MLA:
Various. "The Shepherd’s Dream." *Baha'i Stories for Children*, n.d..

Chicago:
Various. "The Shepherd’s Dream." In *Baha'i Stories for Children*, n.d..