SpringerLink (Online service) & Sommaruga, G. (2011). Foundational theories of classical and constructive mathematics. Springer Netherlands.
Lua i Stíl Chicago (17ú heag.)SpringerLink (Online service) agus Giovanni Sommaruga. Foundational Theories of Classical and Constructive Mathematics. Dordrecht: Springer Netherlands, 2011.
Lua MLA (9ú heag.)SpringerLink (Online service) agus Giovanni Sommaruga. Foundational Theories of Classical and Constructive Mathematics. Springer Netherlands, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.