Wolter, K. M. (2003). Introduction to variance estimation. Springer.
Cita Chicago (17th ed.)Wolter, Kirk M. Introduction to Variance Estimation. Nueva York: Springer, 2003.
Cita MLA (9th ed.)Wolter, Kirk M. Introduction to Variance Estimation. Springer, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.