Approximations for the Null Distribution of the W Statistic.

MLA

Shapiro, S. S., and M. B. Wilk. “Approximations for the Null Distribution of the W Statistic.” Technometrics, vol. 10, no. 4, Nov. 1968, p. 861. EBSCOhost, https://doi.org/10.2307/1267467.

APA

Shapiro, S. S., & Wilk, M. B. (1968). Approximations for the Null Distribution of the W Statistic. Technometrics, 10(4), 861. https://doi.org/10.2307/1267467

Chicago

Shapiro, S.S., and M.B. Wilk. 1968. “Approximations for the Null Distribution of the W Statistic.” Technometrics 10 (4): 861. doi:10.2307/1267467.