Παραπομπή APA

(1964). Science: Nos 3614-3626. American association for the advancement of science.

Παραπομπή Chicago Style

Science: Nos 3614-3626. Lancaster: American association for the advancement of science, 1964.

Παραπομπή MLA

Science: Nos 3614-3626. American association for the advancement of science, 1964.