Negri, S., Plato, J. v., & Ranta, A. (2001). Structural proof theory. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Negri, Sara, Jan von Plato, agus Aarne Ranta. Structural Proof Theory. Cambridge (GB) ; New York: Cambridge University Press, 2001.
Lua MLA (8ú heag.)Negri, Sara, et al. Structural Proof Theory. Cambridge University Press, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.