Delano, M. F. (2008). Helen's eyes: A photobiography of Annie Sullivan, Helen Keller's teacher. National Geographic.
Cita Chicago Style (17a ed.)Delano, Marfe Ferguson. Helen's Eyes: A Photobiography of Annie Sullivan, Helen Keller's Teacher. Washington, D.C.: National Geographic, 2008.
Cita MLA (8a ed.)Delano, Marfe Ferguson. Helen's Eyes: A Photobiography of Annie Sullivan, Helen Keller's Teacher. National Geographic, 2008.
Precaución: Estas citas no son 100% exactas.