Equipmental factors in society, [68], [142]
Evolution, [14], [15], [56], [101]
Expectancy, [41]
F
Factors in social change, [15], [16], [22], [144]
Family, [59], [61], [74], [86], [88], [89], [140]
Equipmental factors in society, [68], [142]
Evolution, [14], [15], [56], [101]
Expectancy, [41]
Factors in social change, [15], [16], [22], [144]
Family, [59], [61], [74], [86], [88], [89], [140]