HF - Commerce 27,758
HD - Industries, Land Use, Labor 24,930
HG - Finance 9,221
HB - Economic Theory and Demography 4,740
HC - Economic History and Conditions 4,337
HM - Sociology 3,947
HV - Social Pathology, Criminology 3,264
HQ - Family, Marriage, Women 2,595
HT - Communities, Classes, Races 2,136
HE - Transportation and Communications 2,120
H - Social Science 1,540
HA - Statistics 1,211
HN - Social History and Conditions 1,208
HJ - Public Finance 943
HX - Socialism, Communism, Anarchism 170
HS - Societies 34