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Below are groups and resources (books, articles, websites, etc.) related to this topic. Click on an item’s title to go its resource page with author, publisher, description/abstract and other details, a link to the full text if available, as well as links to related topics in the Subject Index. You can also browse the Title, Author, Subject, Chronological, Dewey, LoC, and Format indexes, or use the Search box.
Particularly recommended items are flagged with a red logo: