BibTeX:
@incollection{Various,
  author = {Various},
  title = {Shahr-Bánú Khánum's Broken Betrothal},
  booktitle = {Baha'i Stories Blog},
  url = {https://bahaistories.blogspot.com/2014/11/opposition-to-abdul-bahas-proposed.html},
}

APA:
Various. Shahr-Bánú Khánum's Broken Betrothal. In *Baha'i Stories Blog*.

MLA:
Various. "Shahr-Bánú Khánum's Broken Betrothal." *Baha'i Stories Blog*, n.d..

Chicago:
Various. "Shahr-Bánú Khánum's Broken Betrothal." In *Baha'i Stories Blog*, n.d..