APA

dorf r. c., . (1989). modern control systems. New York: addison -wesley publishing company.

Chicago

dorf richard c, . 1989. modern control systems. New York: addison -wesley publishing company.

Harvard

dorf r. c., . (1989). modern control systems. New York: addison -wesley publishing company.

MLA

dorf richard c, . modern control systems. New York: addison -wesley publishing company. 1989.