Cite
On the Effect of Stratification When Two Stratifying Variables Are Used.
MLA
Thomsen, I. B. “On the Effect of Stratification When Two Stratifying Variables Are Used.” Journal of the American Statistical Association, vol. 72, no. 357, Mar. 1977, p. 149. EBSCOhost, https://doi.org/10.1080/01621459.1977.10479927.
APA
Thomsen, I. B. (1977). On the Effect of Stratification When Two Stratifying Variables Are Used. Journal of the American Statistical Association, 72(357), 149. https://doi.org/10.1080/01621459.1977.10479927
Chicago
Thomsen, I.B. 1977. “On the Effect of Stratification When Two Stratifying Variables Are Used.” Journal of the American Statistical Association 72 (357): 149. doi:10.1080/01621459.1977.10479927.