Mango includes a variety of resources to help users learn practical conversation skills for languages spoken all around the world.
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Portuguese by 
Modern Brazilian Portuguese Grammar by Consider using encyclopedias and other reference sources when you begin researching a topic. Some encyclopedias will provide more in-depth information than others, but any general encyclopedia is a good source to consult for background information of your chosen subject area. Most encyclopedias provide the following:
Explore tens of thousands of articles, videos, primary sources and journals/periodicals. Browse popular topics, news, biographies, and more! This is a great resource for getting research started or getting more acquainted with a particular topic.
This link opens in a new windowA starting point for research and learning that offers unlimited access to hundreds of full text reference books on every subject. Includes encyclopedias, dictionaries, thesauri and books of quotations.
A searchable, full-text database of encyclopedias, almanacs, and specialized reference sources.
Contains over 100 dictionary, language reference, and subject reference works published by Oxford University Press. Also includes the Oxford Companions Series.
Widely regarded as the accepted authority on the English language, this descriptive dictionary traces the historical development of the language.
