Gaya APA
Herrera, Mario. (2013).
CD Workbook Big English 3 .
USA:
Pearson.
Gaya Chicago
Herrera, Mario.
CD Workbook Big English 3.
USA:
Pearson,
2013.
CD-ROM.
Gaya MLA
Herrera, Mario.
CD Workbook Big English 3.
USA:
Pearson,
2013.
CD-ROM.
Gaya Turabian
Herrera, Mario.
CD Workbook Big English 3.
USA:
Pearson,
2013.
CD-ROM.