Παραπομπή APA

Cox,George W, & Atkins,Michael D. (1979). Agricultural ecology: An analysis of world food production system. W H Freeman and Company.

Παραπομπή Chicago Style

Cox,George W, και Atkins,Michael D. Agricultural Ecology: An Analysis of World Food Production System. San Francisco: W H Freeman and Company, 1979.

Παραπομπή MLA

Cox,George W, και Atkins,Michael D. Agricultural Ecology: An Analysis of World Food Production System. W H Freeman and Company, 1979.