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Images: Finding and Using Images for Research and Instruction: Image Collections by Subject
A guide to finding images for classroom, Internet, publication, and presentation use, including links to sites with information about legal issues in using images.
"Materials in the OCP collections are available solely for the purpose of teaching or individual research. Users may reference, print, or link to digital materials in this resource for teaching, learning, or research purposes." See more at http://ocp.hul.harvard.edu/permissions.html