BibTeX:
@incollection{Various,
  author = {Various},
  title = {When ‘Abdu’l-Bahá came to Boston in May, many people invited Harry},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/transformation},
}

APA:
Various. When ‘Abdu’l-Bahá came to Boston in May, many people invited Harry. In *bahaistories.com archive*.

MLA:
Various. "When ‘Abdu’l-Bahá came to Boston in May, many people invited Harry." *bahaistories.com archive*, n.d..

Chicago:
Various. "When ‘Abdu’l-Bahá came to Boston in May, many people invited Harry." In *bahaistories.com archive*, n.d..