APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.