Merrill, S., & Grofman, B. (1999). A unified theory of voting: Directional and proximity spatial models. Cambridge University Press.
Style de citation Chicago (17e éd.)Merrill, Samuel, et Bernard Grofman. A Unified Theory of Voting: Directional and Proximity Spatial Models. Cambridge, UK ; New York: Cambridge University Press, 1999.
Style de citation MLA (9e éd.)Merrill, Samuel, et Bernard Grofman. A Unified Theory of Voting: Directional and Proximity Spatial Models. Cambridge University Press, 1999.
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