APA Style
Herrera, Mario. ().
Backpack 4 Teacher's Edition .
:
.
Chicago Style
Herrera, Mario.
Backpack 4 Teacher's Edition.
:
,
.
Text.
MLA Style
Herrera, Mario.
Backpack 4 Teacher's Edition.
:
,
.
Text.
Turabian Style
Herrera, Mario.
Backpack 4 Teacher's Edition.
:
,
.
Print.