APA (7th ed.) Zitazioa

Lefschetz, S. (1977). Differential equations: Geometric theory (2a. ed.). Dover Publications Inc.

Chicago Style (17th ed.) Zitazioa

Lefschetz, Solomon. Differential Equations: Geometric Theory. 2a. ed. Nueva York: Dover Publications Inc, 1977.

MLA (9th ed.) Zitazioa

Lefschetz, Solomon. Differential Equations: Geometric Theory. 2a. ed. Dover Publications Inc, 1977.