Cita APA (7th ed.)

Pryor, E. B. (1987). Clara Barton: Professional angel. University of Pennsylvania Press.

Cita Chicago (17th ed.)

Pryor, Elizabeth Brown. Clara Barton: Professional Angel. Philadelphia [Pa.]: University of Pennsylvania Press, 1987.

Cita MLA (9th ed.)

Pryor, Elizabeth Brown. Clara Barton: Professional Angel. University of Pennsylvania Press, 1987.