Champbel , R. .. C. (1989). Statistics for biologists (3rd ed.). Cambridge university press.
Chicago Style aipamenaChampbel , R . C. Statistics for Biologists. 3rd ed. Cambridge: Cambridge university press, 1989.
MLA aipamenaChampbel , R . C. Statistics for Biologists. 3rd ed. Cambridge university press, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.