Hansen, M. H., Hurwitz, W. N., & Madow, W. G. (1953). Sample survey methods and theory.Vol.II. theory. John Wiley & Sons.
Dyfyniad Arddull ChicagoHansen, Morris H., William N. Hurwitz, and William G. Madow. Sample Survey Methods and Theory.Vol.II. Theory. New York: John Wiley & Sons, 1953.
Dyfyniad MLAHansen, Morris H., et al. Sample Survey Methods and Theory.Vol.II. Theory. John Wiley & Sons, 1953.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.