APA (7th ed.) Citation

Duffy & Smith. (1987). Auto fuel systems. Goodheart-Willcox Co.

Chicago Style (17th ed.) Citation

Duffy and Smith. Auto Fuel Systems. South Holland, Ill: Goodheart-Willcox Co, 1987.

MLA (8th ed.) Citation

Duffy and Smith. Auto Fuel Systems. Goodheart-Willcox Co, 1987.

Warning: These citations may not always be 100% accurate.