Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service) & Sommaruga, G. (2011). Foundational theories of classical and constructive mathematics. Springer Netherlands.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service) και Giovanni Sommaruga. Foundational Theories of Classical and Constructive Mathematics. Dordrecht: Springer Netherlands, 2011.

Παραπομπή σε μορφή MLA (9th εκδ.)

SpringerLink (Online service) και Giovanni Sommaruga. Foundational Theories of Classical and Constructive Mathematics. Springer Netherlands, 2011.