Cramér, Harald. "Chapters 13–14. Foundations". Mathematical Methods of Statistics (PMS-9), Volume 9, Princeton: Princeton University Press, 1946, pp. 137-165. https://doi.org/10.1515/9781400883868-006
Cramér, H. (1946). Chapters 13–14. Foundations. In Mathematical Methods of Statistics (PMS-9), Volume 9 (pp. 137-165). Princeton: Princeton University Press. https://doi.org/10.1515/9781400883868-006
Cramér, H. 1946. Chapters 13–14. Foundations. Mathematical Methods of Statistics (PMS-9), Volume 9. Princeton: Princeton University Press, pp. 137-165. https://doi.org/10.1515/9781400883868-006
Cramér, Harald. "Chapters 13–14. Foundations" In Mathematical Methods of Statistics (PMS-9), Volume 9, 137-165. Princeton: Princeton University Press, 1946. https://doi.org/10.1515/9781400883868-006
Cramér H. Chapters 13–14. Foundations. In: Mathematical Methods of Statistics (PMS-9), Volume 9. Princeton: Princeton University Press; 1946. p.137-165. https://doi.org/10.1515/9781400883868-006