APA
Koenig H. E., Blackwell W. A. j. a., . (1961). Electromechanical system theory. New York: McGraw-Hill.
Chicago
Koenig Herman E, Blackwell William A jt author, . 1961. Electromechanical system theory. New York: McGraw-Hill.
Harvard
Koenig H. E., Blackwell W. A. j. a., . (1961). Electromechanical system theory. New York: McGraw-Hill.
MLA
Koenig Herman E, Blackwell William A jt author, . Electromechanical system theory. New York: McGraw-Hill. 1961.