BibTeX:
@incollection{NabliAam,
  author = {Nabíl-i-A'ẓam},
  title = {The Book in the Pond},
  booktitle = {The Dawn-Breakers: Nabíl's Narrative of the Early Days of the Bahá'í Revelation},
}

APA:
Nabíl-i-A'ẓam. The Book in the Pond. In *The Dawn-Breakers: Nabíl's Narrative of the Early Days of the Bahá'í Revelation*.

MLA:
Nabíl-i-A'ẓam. "The Book in the Pond." *The Dawn-Breakers: Nabíl's Narrative of the Early Days of the Bahá'í Revelation*, n.d..

Chicago:
Nabíl-i-A'ẓam. "The Book in the Pond." In *The Dawn-Breakers: Nabíl's Narrative of the Early Days of the Bahá'í Revelation*, n.d..