APA aipamena

Balakrishnan, A. V. (1969). Control theory and the calculus of variations. Academic Press.

Chicago Style aipamena

Balakrishnan, A. V. Control Theory and the Calculus of Variations. New York: Academic Press, 1969.

MLA aipamena

Balakrishnan, A. V. Control Theory and the Calculus of Variations. Academic Press, 1969.