Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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