APA (7th ed.) Zitazioa
Goursat, E. (1964). Variation of solutions partial differential equations of the second order. Dover.
Chicago Style (17th ed.) Zitazioa
Goursat, Edouard. Variation of Solutions Partial Differential Equations of the Second Order. Nueva York, EUA: Dover, 1964.
MLA (9th ed.) Zitazioa
Goursat, Edouard. Variation of Solutions Partial Differential Equations of the Second Order. Dover, 1964.
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