BibTeX:
@incollection{Various,
  author = {Various},
  title = {Just before leaving for the West Coast--John did not give me the date; I assume},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/venting},
}

APA:
Various. Just before leaving for the West Coast--John did not give me the date; I assume. In *bahaistories.com archive*.

MLA:
Various. "Just before leaving for the West Coast--John did not give me the date; I assume." *bahaistories.com archive*, n.d..

Chicago:
Various. "Just before leaving for the West Coast--John did not give me the date; I assume." In *bahaistories.com archive*, n.d..