Gaya APA

Duffy, J, E. (1989). Auto Electricity, Electronics, Computers (--). South Holland, IIlinois: The Gooheart-Willcox Company.

Gaya MLA

Duffy, James, E.. "Auto Electricity, Electronics, Computers". -- South Holland, IIlinois: The Gooheart-Willcox Company, 1989. Text.