Electro-craft Corporation. (1977). DC motors, speed controls, servo systems : an engineering handbook / prepared by Electro-craft Corporation, USA: An engineering handbook ((Expanded 3rd ed.).). Pergamon.
Chicago Style (17th ed.) CitationElectro-craft Corporation. DC Motors, Speed Controls, Servo Systems : An Engineering Handbook / Prepared by Electro-craft Corporation, USA: An Engineering Handbook. (Expanded 3rd ed.). Oxford (etc.): Pergamon, 1977.
MLA (9th ed.) CitationElectro-craft Corporation. DC Motors, Speed Controls, Servo Systems : An Engineering Handbook / Prepared by Electro-craft Corporation, USA: An Engineering Handbook. (Expanded 3rd ed.). Pergamon, 1977.
Warning: These citations may not always be 100% accurate.