Backpack.
Herrera, Mario.
Pinkley, Diane.
Bupp, Sarah.
Lintner, Teresa.
Hirano, Yoko Mia.
White Plains, N.Y. : Pearson Education
c2005-
Workbook / contributing writer, Sarah Bupp -- Teacher's edition / contributing writer, Teresa Lintner -- Student book / contributing writer, Yoko Mia Hirano
English language
English language