Decimal Classification 61 Education 14 History 11 Philosophy 9 Literature 7 Fishes 6 Multiculturalism 6 Civilization, Modern 5 Classification 5 Intellectual property 5 Intellectual property (International law) 5 Intercultural communication 5 Logic 5 East and West 4 Fish culture-Salmonidae 4 Law and legislation 4 Philosophy, Comparative 4 Philosophy, Modern 4 Research 4 Salmon 4 Social Sciences 4 Telematics 4 Art, Indic 3 Art, Victorian 3 Atlantic salmon 3 Commerce 3 East Indians in art 3 English drama 3 Foreign trade regulation 3 History and criticism 3