Gaya APA

Prokos, A. (2008). Clara Barton, Angle of the Battlefield: Time For Kids Biographies (Fotokopi Hitam Putih) . New York: HarperCollins Publishers.

Gaya MLA

Prokos, Anna. "Clara Barton, Angle of the Battlefield: Time For Kids Biographies (Fotokopi Hitam Putih)". New York: HarperCollins Publishers, 2008. Text.