APA (7th ed.) Citation

Jones, B. Z. (1971). The Harvard College Observatory: The First Four Directorships, 1839–1919. Harvard University Press. https://doi.org/10.4159/harvard.9780674418806

Chicago Style (17th ed.) Citation

Jones, Bessie Zaban. The Harvard College Observatory: The First Four Directorships, 1839–1919. Cambridge, Mass: Harvard University Press, 1971. https://doi.org/10.4159/harvard.9780674418806.

MLA (9th ed.) Citation

Jones, Bessie Zaban. The Harvard College Observatory: The First Four Directorships, 1839–1919. Harvard University Press, 1971. https://doi.org/10.4159/harvard.9780674418806.