Materia
HN Social history and conditions. Social problems. Social reform
HQ The family. Marriage. Woman
H Social Sciences (General)
12
HM Sociology
10
HV Social pathology. Social and public welfare
10
BF Psychology
7
LB2300 Higher Education
6
HT Communities. Classes. Races
5
L Education (General)
4
RA0421 Public health. Hygiene. Preventive Medicine
3
HC Economic History and Conditions
2
K Law (General)
2
LB1501 Primary Education
2
R Medicine (General)
2
RA Public aspects of medicine
2
AC Collections. Series. Collected works
1
F1201 Latin America (General)
1
G Geography (General)
1
GB Physical geography
1
HD Industries. Land use. Labor
1
HD28 Management. Industrial Management
1
HG Finance
1
J General legislative and executive papers
1
JA Political science (General)
1
JC Political theory
1
LB1603 Secondary Education. High schools
1
LC Special aspects of education
1
NX Arts in general
1
QP Physiology
1
RT Nursing
1
RZ Other systems of medicine
1