APA stil citiranja

Elsgolts, L. (1977). Differential Equations and the Calculus of Variations: Differential Equations and the Calculus of Variations. Moscow: Mir.

Chicago stil citiranja

Elsgolts, L. Differential Equations and the Calculus of Variations: Differential Equations and the Calculus of Variations. Moscow: Mir, 1977.

MLA stil citiranja

Elsgolts, L. Differential Equations and the Calculus of Variations: Differential Equations and the Calculus of Variations. Moscow: Mir, 1977.