Gaya APA
O'Brien, Liz. (2013).
Speak well .
New York:
Mc Graw Hill.
Gaya Chicago
O'Brien, Liz.
Speak well.
New York:
Mc Graw Hill,
2013.
Text.
Gaya MLA
O'Brien, Liz.
Speak well.
New York:
Mc Graw Hill,
2013.
Text.
Gaya Turabian
O'Brien, Liz.
Speak well.
New York:
Mc Graw Hill,
2013.
Print.