Sullivan, G. (2007). Helen Keller: Her life in pictures. Scholastic Nonfiction.
Cita Chicago Style (17a ed.)Sullivan, George. Helen Keller: Her Life in Pictures. New York: Scholastic Nonfiction, 2007.
Cita MLA (8a ed.)Sullivan, George. Helen Keller: Her Life in Pictures. Scholastic Nonfiction, 2007.
Precaución: Estas citas no son 100% exactas.