Gaya APA
Herrera, Mario. (2013).
Big English 1 .
New York:
Pearson Longman.
Gaya Chicago
Herrera, Mario.
Big English 1.
New York:
Pearson Longman,
2013.
Text.
Gaya MLA
Herrera, Mario.
Big English 1.
New York:
Pearson Longman,
2013.
Text.
Gaya Turabian
Herrera, Mario.
Big English 1.
New York:
Pearson Longman,
2013.
Print.