Gaya APA

Williams, J, J, D, ;, A, R, S, ;, I, J. (1976). Feedback and control systems . Singapore: MC. GRAW HILL.

Gaya MLA

Williams, Joseph, J., DiStefano, ;, Allen, R., Stubberud, ;, Ivan, J.. "Feedback and control systems". Singapore: MC. GRAW HILL, 1976. Text.