APA (7th ed.) Citation

El'sgol'c, L. E. (1975). Variationsrechnung. Bibliograph. Inst.

Chicago Style (17th ed.) Citation

El'sgol'c, Lev E. Variationsrechnung. Mannheim u.a: Bibliograph. Inst, 1975.

MLA (9th ed.) Citation

El'sgol'c, Lev E. Variationsrechnung. Bibliograph. Inst, 1975.