Society of Environmental Communications. (1992). (Journal) Down to earth. Society of Environmental Communications.
استشهاد بنمط شيكاغوSociety of Environmental Communications. (Journal) Down to Earth. New Delhi: Society of Environmental Communications, 1992.
MLA استشهادSociety of Environmental Communications. (Journal) Down to Earth. Society of Environmental Communications, 1992.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.