APA aipamena

(1949). Science: Nos 2819 - 2843. American association for the advancement of science.

Chicago Style aipamena

Science: Nos 2819 - 2843. Lancaster: American association for the advancement of science, 1949.

MLA aipamena

Science: Nos 2819 - 2843. American association for the advancement of science, 1949.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.