(1969). PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCE OF THE UNITED STATES OF AMERICA ( J ). THE NATIONAL ACADEMY OF SCIENCE.
استشهاد بنمط شيكاغوPROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCE OF THE UNITED STATES OF AMERICA ( J ). USA: THE NATIONAL ACADEMY OF SCIENCE, 1969.
MLA استشهادPROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCE OF THE UNITED STATES OF AMERICA ( J ). THE NATIONAL ACADEMY OF SCIENCE, 1969.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.