BibTeX:
@incollection{AbdulBah,
  author = {'Abdu'l-Bahá},
  title = {The Question at Brooklands},
  booktitle = {'Abdu'l-Bahá in London},
}

APA:
'Abdu'l-Bahá. The Question at Brooklands. In *'Abdu'l-Bahá in London*.

MLA:
'Abdu'l-Bahá. "The Question at Brooklands." *'Abdu'l-Bahá in London*, n.d..

Chicago:
'Abdu'l-Bahá. "The Question at Brooklands." In *'Abdu'l-Bahá in London*, n.d..