To see a partial list of International Relations periodicals owned by Bowdoin search "International Relations -- Periodicals" as subject. Here's a list of some scholarly IR journals:
Worldwide Political Science Abstracts
Political science database providing thorough indexing coverage of both domestic and international political science scholarship.
Backfile of scholarly journal articles, usually full runs of journals and excluding the most recent issues.
Current, growing collection of online scholarly journal articles.
Fulltext database of working papers, conference proceedings, policy briefs and other materials for the study of international relations, produced collaboratively by the Columbia University Libraries and Columbia University Press.
PAIS Index, 1915-present
Index for "publications on all subjects that bear on contemporary public issues and the making and evaluation of public policy, irrespective of source or traditional disciplinary boundaries." Sources include articles, books, government documents and NGO reports.
Primary index for the scholarly literature of economics, covering journal articles, books, and working papers, published from 1969 to the present.