HQ - Family, Marriage, Women 189
H - Social Science 169
HD - Industries, Land Use, Labor 165
HC - Economic History and Conditions 161
HN - Social History and Conditions 114
HT - Communities, Classes, Races 85
HF - Commerce 74
HV - Social Pathology, Criminology 52
HM - Sociology 41
HB - Economic Theory and Demography 38
HE - Transportation and Communications 35
HG - Finance 34
HX - Socialism, Communism, Anarchism 22
HJ - Public Finance 20
HS - Societies 11
HA - Statistics 7
