Gaya APA
Harrera, Mario, Pinkley, Diane. (2005).
Workbook Backpack 6 .
New York:
Pearson Longman.
Gaya Chicago
Harrera, Mario, Pinkley, Diane.
Workbook Backpack 6.
New York:
Pearson Longman,
2005.
Text.
Gaya MLA
Harrera, Mario, Pinkley, Diane.
Workbook Backpack 6.
New York:
Pearson Longman,
2005.
Text.
Gaya Turabian
Harrera, Mario, Pinkley, Diane.
Workbook Backpack 6.
New York:
Pearson Longman,
2005.
Print.