APA Edition Citation

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

Chicago Edition Citation

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

MLA Edition Citation

Elsgolts, L; Yankovsky. Differential Equations and the Calculus of Variations. 1970.

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