BibTeX:
@incollection{Various,
  author = {Various},
  title = {Half an Hour with Jeffrey Parsons},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/universal-language-heart-heart},
}

APA:
Various. Half an Hour with Jeffrey Parsons. In *bahaistories.com archive*.

MLA:
Various. "Half an Hour with Jeffrey Parsons." *bahaistories.com archive*, n.d..

Chicago:
Various. "Half an Hour with Jeffrey Parsons." In *bahaistories.com archive*, n.d..