Lexile®: 650 ; DRA: 44, 45, 46, 47, 48, 49, 50
9780736241915Lexile®: 660 ; DRA: 44, 45, 46, 47, 48, 49, 50
9780736241830Lexile®: 560 ; DRA: 44, 45, 46, 47, 48, 49, 50
9780736241922Lexile®: 810
9781285347417Lexile®: 720
9781285347776Lexile®: 550
9781285346915Lexile®: 420
9781285347271