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Full text electronic versions of Twayne's Author Series and these three reference works: Encyclopedia of 教育al Leadership and Administration; Encyclopedia of Recreation & Leisure in America and International Encyclopedia of the 社会科学.
Indexes and abstracts US government publications. 更多的
GreenFILE is a research database focusing on the relationship between human beings and the environment, with well-researched but accessible information on topics ranging from global warming to recycling to alternate fuel sources and beyond. Comprised of scholarly and general interest titles, as well as government documents and reports, GreenFILE offers a perspective on the positive and negative ways humans affect the ecology. 更多的