Pre-Algebra A Reference Guide and Problem Sets Student Edition by K12 Inc.; Thomas, Paul; Horton, Lee; Desmond, Mary Beck by Paul; Horton, Lee; Desmond, Mary Beck K12 Inc.; Thomas (2009-05-04) - Hardcover

 
9781601530271: Pre-Algebra A Reference Guide and Problem Sets Student Edition by K12 Inc.; Thomas, Paul; Horton, Lee; Desmond, Mary Beck by Paul; Horton, Lee; Desmond, Mary Beck K12 Inc.; Thomas (2009-05-04)