N3 Economic History: Labor and Consumers, Demography, Education, Health, Welfare, Income and Wealth ( 0 Dok. )

• N30 General, International, or Comparative ( 0 Dok. )

• N31 U.S.; Canada: Pre-1913 ( 0 Dok. )

• N32 U.S.; Canada: 1913- ( 0 Dok. )

• N33 Europe: Pre-1913 ( 0 Dok. )

• N34 Europe: 1913- ( 0 Dok. )

• N35 Asia including Middle East ( 0 Dok. )

• N36 Latin America; Caribbean ( 0 Dok. )

• N37 Africa; Oceania ( 0 Dok. )