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Types of
Sources
Primary sources, according to The Longman Concise Companion,
consist "of information and ideas in original or close-to-original
form" (151), whereas secondary sources consist "of works that
analyze, summarize, interpret, or explain primary sources" (151).
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Examples |
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Primary Source |
Secondary Source |
| An exact
transcript of an interview with an expert in some field |
An article
that discusses the expert's contributions to the field
and quotes from the interview |
| The raw data
gathered from a survey about dental hygiene |
An
advertisement that claims four out of five dentists
recommend sugarless gum |
| The
Declaration of Independence |
A political
speech that refers to the Declaration of Independence |
| The
Adventures of Huckleberry Finn by Mark Twain (when
used in a literary analysis of Huck Finn) |
Huckleberry Finn as Idol and Target: The Functions of
Criticism in Our Time by Jonathan Arac (when used in
the same literary analysis) |
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