Dyfyniad APA

Sarndal, C. (1991). Model Assisted Survey Sampling. Springer.

Dyfyniad Arddull Chicago

Sarndal, Carl-Erik. Model Assisted Survey Sampling. New York: Springer, 1991.

Dyfyniad MLA

Sarndal, Carl-Erik. Model Assisted Survey Sampling. Springer, 1991.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.