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Detailed statistics on the urban and rural population of Pakistan : 1950 to 2010
Finch, Glenda S., (1984)
Instructions for cross-sectional surveys
(1964)
Instructions for longitudinal registration
(1963)
Does Google content degrade Google search? : experimental evidence
Luca, Michael, (2016)
El efecto de los errores en la aplicación de la tecnica de Chandrasekar-Deming : trad.
Seltzer, William, (1976)
Measurement of accomplishment : the evaluation of family planning efforts
Seltzer, William, (1970)