BibTeX:
@incollection{Various,
  author = {Various},
  title = {Dorothy Baker's Prayer Before Speaking},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/speech},
}

APA:
Various. Dorothy Baker's Prayer Before Speaking. In *bahaistories.com archive*.

MLA:
Various. "Dorothy Baker's Prayer Before Speaking." *bahaistories.com archive*, n.d..

Chicago:
Various. "Dorothy Baker's Prayer Before Speaking." In *bahaistories.com archive*, n.d..