APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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