69-5739 History and systems
                 10-41 General philosophical works
                 95-131 Metaphysics
                 143-236 Epistemology. Theory of knowledge
                 300-450 Ontology Including the soul and immortality
                 493-708 Cosmology
 
                1188-1500 Religous ethics
                1545-1691 Practical and applied ethics. Conduct of life
                1801-2195 Social usages. Etiquette
                  848-875         Population 
                  879-3700       Demography and vital statistics 
                  3711-3840     Crises and Business cycles
 
                1-91               Production. Industrial management 
                101-1395       Land
                1401-2210     Agricultural economics
                2709-2930     Corporations and trusts
                2951-3570     Industrial cooperation 
                3611-4730     The state and industrial organization 
                4801-8942     Labor including wages, strikes, labor unions, & industrial relations
 
                  5601-5689     Accounting 
                   201-1496       Money 
                   1501-3542     Banking 
                   3701-3781     Credit 
                   3810-4000     Foreign exchange 
                   4001-4495     Corporate finance 
                   4501-6270     Stocks and investment
                    8111-9970     Insurance
 
                 2005-2199     Income and expenditure. The budget 
                 2240-5957     Revenue and taxation 
                 6041-7384     Customs and tariffs
                 8003-8963     Public credit, debts and loans 
                 9000-9698     Local finance 
                 9701-9995     Public accounting
 
                 1-9         Official gazettes
                 80-85       Presidents' messages and other executive documents
 
                311-323     Nationalism. Minorities. Geopolitics
                325-341     Nature, entity, concept of the state
                345-347     Symbolism, emblems of the state:  Arms, flag, seal, etc.
                348-497     Forms of the state, including democracy
                501-628     Purpose, functions, and relations of the state
                571-628     The state and the individual. Individual rights. Liberty
 
                201-723     Organs and function of government
                800-1191    Political rights and guaranties 
               1321-2112   Government. Administration 
               1411-1674   Civil Service 
                2011-2112   Political parties
                63-1195       Collections. Documents. Cases 
                101-115       Diplomatic relations (Universal collections) 
                120-191       Treaties (Universal collections) 
                1305-1598   International relations. Foreign relations 
                1625-1896   Diplomacy. The diplomatic service 
                1901-1995   International arbitration and organizations 
                 2001-5810  International law 
1300-1766 Caricature. Pictorial humor and satire