Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.