Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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