Webster, A. G. (1955). Partial diferential equations of mathematical physics. Dover.
Cita Chicago (17th ed.)Webster, Arthur Gordon. Partial Diferential Equations of Mathematical Physics. Nueva York: Dover, 1955.
Cita MLA (9th ed.)Webster, Arthur Gordon. Partial Diferential Equations of Mathematical Physics. Dover, 1955.
Atenció: Aquestes cites poden no estar 100% correctes.