BibTeX:
@incollection{Various,
  author = {Various},
  title = {The childhood and youth of my brother [‘Abdu’l-Bahá]was, in fact, in all respects unusual},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/abdul-baha-childhood},
}

APA:
Various. The childhood and youth of my brother [‘Abdu’l-Bahá]was, in fact, in all respects unusual. In *bahaistories.com archive*.

MLA:
Various. "The childhood and youth of my brother [‘Abdu’l-Bahá]was, in fact, in all respects unusual." *bahaistories.com archive*, n.d..

Chicago:
Various. "The childhood and youth of my brother [‘Abdu’l-Bahá]was, in fact, in all respects unusual." In *bahaistories.com archive*, n.d..