Cockrell, W. D. (1944). Industrial electronic control: A guide to the understanding of electronic control circuits for industrial uses. McGraw-Hill.
Chicago-referens (17:e uppl.)Cockrell, W. D. Industrial Electronic Control: A Guide to the Understanding of Electronic Control Circuits for Industrial Uses. New York: McGraw-Hill, 1944.
MLA-referens (8:e uppl.)Cockrell, W. D. Industrial Electronic Control: A Guide to the Understanding of Electronic Control Circuits for Industrial Uses. McGraw-Hill, 1944.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.