APA (7th ed.) Zitazioa

Merrill, S., & Grofman, B. (1999). A unified theory of voting: Directional and proximity spatial models. Cambridge University Press.

Chicago Style (17th ed.) Zitazioa

Merrill, Samuel, eta Bernard Grofman. A Unified Theory of Voting: Directional and Proximity Spatial Models. Cambridge, UK ; New York: Cambridge University Press, 1999.

MLA (9th ed.) Zitazioa

Merrill, Samuel, eta Bernard Grofman. A Unified Theory of Voting: Directional and Proximity Spatial Models. Cambridge University Press, 1999.