BibTeX:
@incollection{Various,
  author = {Various},
  title = {Many were the incidents of that two years'' sojourn in the},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/bahaullah-sulaymaniyyih},
}

APA:
Various. Many were the incidents of that two years'' sojourn in the. In *bahaistories.com archive*.

MLA:
Various. "Many were the incidents of that two years'' sojourn in the." *bahaistories.com archive*, n.d..

Chicago:
Various. "Many were the incidents of that two years'' sojourn in the." In *bahaistories.com archive*, n.d..