BibTeX:
@incollection{LadyBlomfield1940,
  author = {Lady Blomfield},
  title = {'Abdu'l-Bahá and Jamál Páshá},
  booktitle = {The Chosen Highway},
  year = {1940},
  publisher = {George Ronald},
  url = {https://bahai-library.com/blomfield_chosen_highway},
}

APA:
Lady Blomfield. (1940). 'Abdu'l-Bahá and Jamál Páshá. In *The Chosen Highway*. George Ronald.

MLA:
Lady Blomfield. "'Abdu'l-Bahá and Jamál Páshá." *The Chosen Highway*, George Ronald, 1940.

Chicago:
Lady Blomfield. "'Abdu'l-Bahá and Jamál Páshá." In *The Chosen Highway*, George Ronald, 1940.