Erricken, B. (1971). Advance general statistics. Eng. Univ. Press.
Chicago Style aipamenaErricken, B. Advance General Statistics. London: Eng. Univ. Press, 1971.
MLA aipamenaErricken, B. Advance General Statistics. Eng. Univ. Press, 1971.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.