Gaya APA

Berne, E, C. (2007). Sterling Biographies: Helen Keller Courage in Darkness (Cetakan Pertama). Jakarta: Sterling Children\'s Books.

Gaya MLA

Berne, Emma, Carlson. "Sterling Biographies: Helen Keller Courage in Darkness". Cetakan Pertama Jakarta: Sterling Children\'s Books, 2007. GEN - Bacaan/Seri Non-Fiksi.