APA (7th ed.) Citation

Williams, J. W. (1903). A sketch of the history of obstetrics in the United States up to 1860. Appleton.

Chicago Style (17th ed.) Citation

Williams, J. Whitridge. A Sketch of the History of Obstetrics in the United States Up to 1860. New York [u.a.]: Appleton, 1903.

MLA (9th ed.) Citation

Williams, J. Whitridge. A Sketch of the History of Obstetrics in the United States Up to 1860. Appleton, 1903.