BibTeX:
@incollection{Various,
  author = {Various},
  title = {During one or two of those summers early in Shoghi Effendi's ministry},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/simple-life},
}

APA:
Various. During one or two of those summers early in Shoghi Effendi's ministry. In *bahaistories.com archive*.

MLA:
Various. "During one or two of those summers early in Shoghi Effendi's ministry." *bahaistories.com archive*, n.d..

Chicago:
Various. "During one or two of those summers early in Shoghi Effendi's ministry." In *bahaistories.com archive*, n.d..