APA (7th ed.) Citation

Phillips, C. L., & Harbor, R. D. (1991). Feedback control systems (2nd ed.). Prentice Hall.

Chicago Style (17th ed.) Citation

Phillips, Charles L., and Royce D. Harbor. Feedback Control Systems. 2nd ed. Englewood Cliffs, N.J: Prentice Hall, 1991.

MLA (9th ed.) Citation

Phillips, Charles L., and Royce D. Harbor. Feedback Control Systems. 2nd ed. Prentice Hall, 1991.