Mercedes Graf, « With high hopes: women contract surgeons in World War I », Minerva: Quarterly Report on Women and the Military, , p. 7 (lire en ligne, consulté le ).
From Yauco to Las Marias; Being a story of the recent campaign in western Puerto Rico by the independent regular brigade under command of Brigadier general Schwon par Karl Hermann, éditions R.G. Badger & Co. 1900 texte gratuit sur gutenberg
