Dictionaries 75 English language -- 47 Congresses 46 Congresses -- 39 Periodicals 39 Handbooks, manuals, etc 36 Dictionaries -- 31 more ... Encyclopedias 28 Politics and government -- 27 National security -- 25 Periodicals -- 24 Economic conditions -- 20 Security, International -- 19 Directories 18 International agencies -- 18 Terrorism -- 17 World politics -- 16 English 15 History -- 14 International relations -- 12 Malay language -- 12 Foreign relations -- 11 Guidebooks 11 Malay 11 Statistics -- 11 Biography -- 10 Prevention -- 10 Social conditions -- 10 Statistics 10 Politics and government 9 less ...