Start with CLIO to find books and journals in Columbia University library collections. (Use the Pegasus catalog to find books and journals in the Law Library collection and Educat for resources in the Teachers College Library.)
Then try WorldCat, the largest online catalog in the world, with over 100 million book and journal records.
To find dissertations, start with Proquest Digital Dissertations. Also check Dissertations & theses. UK & Ireland and DART, Europe's E-theses portal.
For print periodicals and microforms, see the Periodicals and Microforms Reading Room, (Butler 401).
Other essential resources include:
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