Library research Least effort principle (Psychology) Subject cataloging Subject headings, Library of Congress Classification, Library of Congress Fiction Methodology Research Authors, German Committees Correspondence Diaries History of Biblical events Information retrieval Novelists, German Press and politics Searching, Bibliographical Anniversaries, etc., 1949 Apportionment (Election law) Bibliography Bibliography -- Methodology -- Handbooks, manuals, etc Biography Campaign funds Congress Criticism and interpretation Democracy Election districts Election forecasting For. rel German literature