BibTeX:
@incollection{Various,
  author = {Various},
  title = {Later, ‘Abdu’l-Bahá encountered a group of young people, to whom he told this…},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/peace},
}

APA:
Various. Later, ‘Abdu’l-Bahá encountered a group of young people, to whom he told this…. In *bahaistories.com archive*.

MLA:
Various. "Later, ‘Abdu’l-Bahá encountered a group of young people, to whom he told this…." *bahaistories.com archive*, n.d..

Chicago:
Various. "Later, ‘Abdu’l-Bahá encountered a group of young people, to whom he told this…." In *bahaistories.com archive*, n.d..