William H. Greene, D. A. H. (2012). Modeling Ordered Choices (1.). Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)William H. Greene, David A. Hensher. Modeling Ordered Choices. 1. Cambridge University Press, 2012.
Lua MLA (8ú heag.)William H. Greene, David A. Hensher. Modeling Ordered Choices. 1. Cambridge University Press, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.