Citazione Stile APA (7a Edizione)

Spinner, S., & Groff, D. (2014). Who was Clara Barton? Grosset & Dunlap, an imprint of Penguin Group (USA) LLC.

Citazione stile Chigago Style (17a edizione)

Spinner, Stephanie, e David Groff. Who Was Clara Barton? New York, New York, USA: Grosset & Dunlap, an imprint of Penguin Group (USA) LLC, 2014.

Citatione MLA (9a ed.)

Spinner, Stephanie, e David Groff. Who Was Clara Barton? Grosset & Dunlap, an imprint of Penguin Group (USA) LLC, 2014.