Subject Librarian
Finding Background Information
Use these sources to gain familiarity with your topic, narrow your research question, provide context, and identify experts.
- Find It @ USC LibrariesSearch for articles, books, and more or limit to USC Libraries collection.
- Oxford Reference This link opens in a new windowFully indexed, cross-searchable database of dictionary, language reference, and subject reference works in the sciences published by Oxford University Press. To access reference materials related to environmental science, click the Subject tab, then select Science and Technology.
Understanding Primary and Secondary Sources
Primary sources = Original Research
- Written by the scientists(s) or researcher(s) who conducted the experiment or study
- Should include sections detailing how the research was performed such as methodology, results, and discussion/conclusions
Secondary sources = Summarize, Review or Compare
- Authors did not conduct the research studies which are mentioned or cited in the article themselves
- Purpose is to summarize, review, or compare the published research on a specific topic