2009 Macmillan/McGraw-Hill Leveled Reader Library, Reading 4.5 Week 3, Social Studies: Our National Parks -- Preserving Unique Places: Our National Parks (P) by Emily Wortman-Wunder ***Informational Nonfiction / GR S / Benchmark 50 / Lexile 860 / Word Count: 1,654 ***ISBN-13: 9780022028299 ***Condition: Like New/Good Used ***Pages: 24 @ASKUv @mcghbox1;1>mcgh.read 9x6