Grigg, D. (1974). The agricultural systems of the world: An evolutionary approach. Cambridge University Press.
Chicago Style (17th ed.) CitationGrigg, D.B. The Agricultural Systems of the World: An Evolutionary Approach. Cambridge University Press, 1974.
MLA (9th ed.) CitationGrigg, D.B. The Agricultural Systems of the World: An Evolutionary Approach. Cambridge University Press, 1974.
Warning: These citations may not always be 100% accurate.