Cita APA (7a ed.)

Bolza, O. (1961). Lectures on the calculus of variations. Dover.

Cita Chicago Style (17a ed.)

Bolza, Oskar. Lectures on the Calculus of Variations. New York: Dover, 1961.

Cita MLA (8a ed.)

Bolza, Oskar. Lectures on the Calculus of Variations. Dover, 1961.