BibTeX:
@incollection{Various,
  author = {Various},
  title = {Furútan's First Pilgrimage to the Guardian},
  booktitle = {Baha'i Stories Blog},
  url = {https://bahaistories.blogspot.com/2017/04/the-furutans-first-pilgrimage-during-ww.html},
}

APA:
Various. Furútan's First Pilgrimage to the Guardian. In *Baha'i Stories Blog*.

MLA:
Various. "Furútan's First Pilgrimage to the Guardian." *Baha'i Stories Blog*, n.d..

Chicago:
Various. "Furútan's First Pilgrimage to the Guardian." In *Baha'i Stories Blog*, n.d..