APA Style
Herrera, Mario. ().
Backpack 6 Workbook Second Edition .
:
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Chicago Style
Herrera, Mario.
Backpack 6 Workbook Second Edition.
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,
.
Text.
MLA Style
Herrera, Mario.
Backpack 6 Workbook Second Edition.
:
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.
Text.
Turabian Style
Herrera, Mario.
Backpack 6 Workbook Second Edition.
:
,
.
Print.