Cita APA

Bradley Wells, H. (1974). Data collection systems: National dual record and related systems : systems of demographic measurement. Chapel Hill, N.C.: International Program of Laboratories for Population Statistics.

Citación estilo Chicago

Bradley Wells, H. Data Collection Systems: National Dual Record and Related Systems : Systems of Demographic Measurement. Chapel Hill, N.C.: International Program of Laboratories for Population Statistics, 1974.

Cita MLA

Bradley Wells, H. Data Collection Systems: National Dual Record and Related Systems : Systems of Demographic Measurement. Chapel Hill, N.C.: International Program of Laboratories for Population Statistics, 1974.