APA (7th ed.) Citation

Pontri︠a︡gin, L. S., & Brown, A. (1986). L. S. Pontryagin selected works ([Third edition].). Gordon and Breach Science Publishers.

Chicago Style (17th ed.) Citation

Pontri︠a︡gin, L. S., and Arlen Brown. L. S. Pontryagin Selected Works. [Third edition]. [New York, NY]: Gordon and Breach Science Publishers, 1986.

MLA (9th ed.) Citation

Pontri︠a︡gin, L. S., and Arlen Brown. L. S. Pontryagin Selected Works. [Third edition]. Gordon and Breach Science Publishers, 1986.