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Internet Archive Search

Search add-on for Archive.org
Internet Archive: Universal Access To All Knowledge.

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Wikipedia (SSL)

Wikipedia is an openly-editable, free content internet encyclopedia. This search bar add-on utilizes SSL to protect searches between You and Wikipedia.

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Open Library Search

Open Library: One web page for every book ever published.

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Science Stack - Academic Search Engine

Academic Search Engine for research paper from Mendeley and PloS. Science Stack provides is useful for finding relevant material and building a bibliography. You have a full scientific library at the click of a button.

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Library of Congress Search

Search The Library of Congress catalog.

評分: 3 / 5 顆星 (2)

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King's Library Catalogue

King's College London Library Catalogue Search

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Textbook Search (Textbookx.com)

Search for new and used textbooks (textbookx.com).

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Банк Книг

Поиск бесплатных книг рунета по сайту bankknig.com. На сайте более 120 тысяч бесплатных книг, аудиокниг доступных для скачивания бесплатно и без регистрации.

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