It sounds like the information on this forum question might be helpful to you. In short, The CONSPUMA variable bridges 1980, 1990, and 2000 PUMA definitions and might be helpful for your needs.
It sounds like the information on this forum question might be helpful to you. In short, The CONSPUMA variable bridges 1980, 1990, and 2000 PUMA definitions and might be helpful for your needs.