This study investigates political science monograph publishing patterns through an examination of journal citations. All citations to monographs in the American Political Science Review and the Journal of Politics for 1974-1975 and 1984-1985 were tallied and categorized. Lists of the most frequently cited publishers for both time periods are resented. Citation frequencies of conference proceedings, unpublished sources, foreign language material, and government documents are explored. Centralization of resource use by scholars is examined by looking at what percentage of all monograph citations are accounted for by the twenty-five most active publishers. The results depict a significant amount of change over time in nearly all areas of political science publishing. The documented increase in the use of what might be called "nontraditional" publishing sources is an important factor in collection development undertakings. Suggestions for further study are offered.