Cox,George W, & Atkins,Michael D. (1979). Agricultural ecology: An analysis of world food production system. W H Freeman and Company.
استشهاد بنمط شيكاغوCox,George W, و Atkins,Michael D. Agricultural Ecology: An Analysis of World Food Production System. San Francisco: W H Freeman and Company, 1979.
MLA استشهادCox,George W, و Atkins,Michael D. Agricultural Ecology: An Analysis of World Food Production System. W H Freeman and Company, 1979.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.