Παραπομπή APA

(1950). Science: Nos 2871 - 2896. American association for the advancement of science.

Παραπομπή Chicago Style

Science: Nos 2871 - 2896. Lancaster: American association for the advancement of science, 1950.

Παραπομπή MLA

Science: Nos 2871 - 2896. American association for the advancement of science, 1950.