BibTeX:
@incollection{Various,
  author = {Various},
  title = {Humble Mouse Meets the First Ray of Sun},
  booktitle = {Baha'i Stories for Children},
  url = {https://bahaistoriesforchildren.blogspot.com/2016/08/humble-mouse-meets-first-ray-of-sun.html},
}

APA:
Various. Humble Mouse Meets the First Ray of Sun. In *Baha'i Stories for Children*.

MLA:
Various. "Humble Mouse Meets the First Ray of Sun." *Baha'i Stories for Children*, n.d..

Chicago:
Various. "Humble Mouse Meets the First Ray of Sun." In *Baha'i Stories for Children*, n.d..