Gaya APA

Koenig, H, E., Blackwell, W, A. (1961). Electromechanical System Theory (Ed.1). USA: McGraw-Hill Book Company.

Gaya MLA

Koenig, Herman, E.., Blackwell, William, A.. "Electromechanical System Theory". Ed.1 USA: McGraw-Hill Book Company, 1961. Text.