BibTeX:
@incollection{OnbehalfofShoghiEffendi1982,
  author = {On behalf of Shoghi Effendi},
  title = {The Passing of the Greatest Holy Leaf},
  booktitle = {Bahíyyih Khánum},
  year = {1982},
  url = {https://www.gutenberg.org/cache/epub/19242/pg19242-images.html},
}

APA:
On behalf of Shoghi Effendi. (1982). The Passing of the Greatest Holy Leaf. In *Bahíyyih Khánum*.

MLA:
On behalf of Shoghi Effendi. "The Passing of the Greatest Holy Leaf." *Bahíyyih Khánum*, 1982.

Chicago:
On behalf of Shoghi Effendi. "The Passing of the Greatest Holy Leaf." In *Bahíyyih Khánum*, 1982.