1974 Annual Supplement An Annual Supplement to the UNIVERSAL REFERENCE SYSTEM’s Political Science Series, employing a single Index and Catalog to carry materials pertaining to the ten basic volumes in the series

Political Science Abstracts 1994 Annual Supplement

Political Science Abstracts 1995 Annual Supplement In three volumes Volume 2

The Population Crisis and the Use of World Resources (The Universal Reference System, 2)

American Political Science Research Guide Volume 1

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Bibliographie der Sowjetischen Philosophie / Bibliography of Soviet Philosophy Vol. IV: Ergänzungen / Supplement 1947–1960

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