Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service) & Sommaruga, G. (2011). Foundational Theories of Classical and Constructive Mathematics. Springer Netherlands : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (8th εκδ.)

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