Primary Sources are:
Secondary Sources are:
Tertiary Sources:
Primary Sources |
Secondary Sources |
Tertiary Sources |
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Autobiographies and memoirs |
Bibliographies |
Dictionaries |
Diaries, personal letters, and correspondence |
Biographical works |
Encyclopedias |
Interviews, surveys, and fieldwork |
Articles from magazines, journals, and newspapers written after the event took place |
Almanacs |
Internet communications on email, blogs, listservs, and newsgroups |
Literature reviews and review articles (e.g., movie reviews, book reviews) |
Fact books |
Photographs, drawings, and posters |
History books and other popular or scholarly books |
Textbooks |
Works of art and literature |
Works of criticism and interpretation |
Indexes |
Magazine and newspaper articles published as first hand, eyewitness accounts |
Commentaries and treatises | Abstracts |
Public opinion polls |
Bibliographies | |
Speeches and oral histories |
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Original documents (birth certificates, property deeds, trial transcripts) |
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Research data, such as census statistics |
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Official and unofficial records of organizations and government agencies |
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Artifacts of all kinds, such as tools, coins, clothing, furniture, etc. |
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Audio recordings, DVDs, and video recordings |
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Government documents (reports, bills, proclamations, hearings, etc.) | ||
Patents |
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Technical reports | ||
Scientific journal articles reporting experimental research results |