APA (7th ed.) Citation

Cambridge Educational (Firm) & Duffy, J. E. (2008). How your car works. Cambridge Educational.

Chicago Style (17th ed.) Citation

Cambridge Educational (Firm) and James E. Duffy. How Your Car Works. Lawrence, NJ: Cambridge Educational, 2008.

MLA (8th ed.) Citation

Cambridge Educational (Firm) and James E. Duffy. How Your Car Works. Cambridge Educational, 2008.