Volterra, V. (1959). Theory of functionals and of integrals and integro-differential equations. Dover.
Lua i Stíl Chicago (17ú heag.)Volterra, Vito. Theory of Functionals and of Integrals and Integro-differential Equations. New York: Dover, 1959.
Lua MLA (9ú heag.)Volterra, Vito. Theory of Functionals and of Integrals and Integro-differential Equations. Dover, 1959.
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