Grigg, D. (1976). The agricultural systems of the world: An evolutionary approach (Repr.). Cambridge Univ. Press.
Chicago Style (17th ed.) CitationGrigg, David. The Agricultural Systems of the World: An Evolutionary Approach. Repr. London: Cambridge Univ. Press, 1976.
MLA (9th ed.) CitationGrigg, David. The Agricultural Systems of the World: An Evolutionary Approach. Repr. Cambridge Univ. Press, 1976.
Warning: These citations may not always be 100% accurate.