BibTeX:
@incollection{Various,
  author = {Various},
  title = {Shoghi Effendi’s desire to write even at a very young age},
  booktitle = {Baha'i Stories Blog},
  url = {https://bahaistories.blogspot.com/2012/12/shoghi-effendis-desire-to-write-even-at.html},
}

APA:
Various. Shoghi Effendi’s desire to write even at a very young age. In *Baha'i Stories Blog*.

MLA:
Various. "Shoghi Effendi’s desire to write even at a very young age." *Baha'i Stories Blog*, n.d..

Chicago:
Various. "Shoghi Effendi’s desire to write even at a very young age." In *Baha'i Stories Blog*, n.d..