77. Comparative Taxation Dataset on 40 Countries and Areas, 1870-2001 Bookmark Format Series - completed
79. Concordances between the 1980 and 1991 editions of the Standard Occupational Classification (SOC) Bookmark Format Macrodata source
80. Concordances between the 1980 Standard Occupational Classification (SOC) and the National Occupational Classification (NOC) Bookmark Format Macrodata source