BibTeX:
@incollection{JuliaMGrundy1907,
  author = {Julia M. Grundy},
  title = {Introduction},
  booktitle = {Ten Days in the Light of Akka},
  year = {1907},
  url = {https://bahai-library.com/grundy_ten_days_akka},
}

APA:
Julia M. Grundy. (1907). Introduction. In *Ten Days in the Light of Akka*.

MLA:
Julia M. Grundy. "Introduction." *Ten Days in the Light of Akka*, 1907.

Chicago:
Julia M. Grundy. "Introduction." In *Ten Days in the Light of Akka*, 1907.