Friedman, M. D. (1968). Variational methods in optimum control theory. Academic Press.
Chicago Edition CitationFriedman, M D. Variational Methods in Optimum Control Theory. New York: Academic Press, 1968.
MLA Edition CitationFriedman, M D. Variational Methods in Optimum Control Theory. Academic Press, 1968.
Warning: These citations may not always be 100% accurate.