Volterra, V. (1959). Theory of functionals and of integrals and integro-differential equations. Dover.
Čikaški stil citiranja (17. izdanje)Volterra, Vito. Theory of Functionals and of Integrals and Integro-differential Equations. New York: Dover, 1959.
MLA način citiranja (9. izdanje)Volterra, Vito. Theory of Functionals and of Integrals and Integro-differential Equations. Dover, 1959.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.