Sarndal, C. (1991). Model Assisted Survey Sampling. Springer.
Chicago Style aipamenaSarndal, Carl-Erik. Model Assisted Survey Sampling. New York: Springer, 1991.
MLA aipamenaSarndal, Carl-Erik. Model Assisted Survey Sampling. Springer, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.