APA Edition Citation

Elsgolts, L. (1970). Differential equations and the calculus of variations. Mir Publishers.

Chicago Edition Citation

Elsgolts, L. Differential Equations and the Calculus of Variations. Moscow: Mir Publishers, 1970.

MLA Edition Citation

Elsgolts, L. Differential Equations and the Calculus of Variations. Mir Publishers, 1970.

Warning: These citations may not always be 100% accurate.