Παραπομπή APA

Champbel , R. .. C. (1989). Statistics for biologists (3rd ed.). Cambridge university press.

Παραπομπή Chicago Style

Champbel , R . C. Statistics for Biologists. 3rd ed. Cambridge: Cambridge university press, 1989.

Παραπομπή MLA

Champbel , R . C. Statistics for Biologists. 3rd ed. Cambridge university press, 1989.