APA (7th ed.) Citation

Beneficial Books & Videos (Firm), Meridian Education Corporation, & Duffy, J. E. (2006). Emission control systems. Meridian Education Corporation.

Chicago Style (17th ed.) Citation

Beneficial Books & Videos (Firm), Meridian Education Corporation, and James E. Duffy. Emission Control Systems. Lawrenceville, NJ: Meridian Education Corporation, 2006.

MLA (8th ed.) Citation

Beneficial Books & Videos (Firm), et al. Emission Control Systems. Meridian Education Corporation, 2006.