(1963). Elementary statistical exercises. C.Univ. Press.
Chicago Style (17th ed.) ZitazioaElementary Statistical Exercises. Cambridge: C.Univ. Press, 1963.
MLA (9th ed.) ZitazioaElementary Statistical Exercises. C.Univ. Press, 1963.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.