Särndal, C., Wretman, J., & Swensson, B. (1991). Model assisted survey sampling. Springer-Verlag.
Cita Chicago Style (17a ed.)Särndal, Carl-Erik, Jan Wretman, y Bengt Swensson. Model Assisted Survey Sampling. New York [etc.]: Springer-Verlag, 1991.
Cita MLA (9a ed.)Särndal, Carl-Erik, et al. Model Assisted Survey Sampling. Springer-Verlag, 1991.
Precaución: Estas citas no son 100% exactas.