Ladders Reading/Language Arts 3: Onward! (above-level; Social Studies) (Ladders Reading Language/arts, 3 Above Level)
National Geographic Learning(Author)
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ISBN:9780736292870
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阅读年龄:阅读年龄 9-10岁 (35.7%), 7-8岁 (21.4%)
A collection of articles linked together by the topic of exploring Antarctica