Gaya APA
Keller, Helen. (2010).
The story of my life .
London:
Signet Classics.
Gaya Chicago
Keller, Helen.
The story of my life.
London:
Signet Classics,
2010.
Text.
Gaya MLA
Keller, Helen.
The story of my life.
London:
Signet Classics,
2010.
Text.
Gaya Turabian
Keller, Helen.
The story of my life.
London:
Signet Classics,
2010.
Print.