Cramer, H. (1946). Mathematical Methods of Statistics (2nd.). Ptincepton University Press.
Παραπομπή σε μορφή Chicago (17η εκδ.)Cramer, Harald. Mathematical Methods of Statistics. 2nd. United States: Ptincepton University Press, 1946.
Παραπομπή σε μορφή MLA (9th εκδ.)Cramer, Harald. Mathematical Methods of Statistics. 2nd. Ptincepton University Press, 1946.