APA (7th ed.) Citation

Bolza, O. (2018). Lectures on the calculus of variations (Dover edition, [2018 edition].). Dover Publications, Inc..

Chicago Style (17th ed.) Citation

Bolza, O. Lectures on the Calculus of Variations. Dover edition, [2018 edition]. Mineola, New York: Dover Publications, Inc., 2018.

MLA (9th ed.) Citation

Bolza, O. Lectures on the Calculus of Variations. Dover edition, [2018 edition]. Dover Publications, Inc., 2018.