C91, D01, D83
C92, C93, D02, D04, F50
C91, D70, D91
D91, I38
H42, L95, D91, O18
I20,I25,O15
H43, I10, I20, I38, O15
C93, D83, D90, I38, O15
C93, D90, I10, K42, O12
H53 (Government Expenditures and Welfare Programs) D91 (Role and Effects of Psychological