Information becomes less accurate the farther away you go from the original or primary source, becuase each new author adds his/her own interpretation.
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It is essential to evaluate all sources (print or electronic) before using them for an assignment or research project. Free online sources (websites) require more careful evaluation. The most common criteria to evaluate scientific sources are (click the gren arrows to see more):
Denison University Libraries, 400 West Loop, Granville, Ohio 43023 Phone: 740-587-6235, email: firstname.lastname@example.org In order to view PDF documents, you will need to have the free Adobe Acrobat Reader software installed on your computer