Gaya APA
Cain, S. (2012).
Quiet : The Power of Introverts in a World That Can't Stop Talking .
United Kingdom:
Penguin Books.
Gaya MLA
Cain, Susan.
"Quiet : The Power of Introverts in a World That Can't Stop Talking".
United Kingdom:
Penguin Books,
2012.
Text.