Cita APA (7th ed.)
Howell, R. A. (1978). Business law. Dryden Press.
Cita Chicago (17th ed.)
Howell, Rate A. Business Law. Illinois: Dryden Press, 1978.
Cita MLA (9th ed.)
Howell, Rate A. Business Law. Dryden Press, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.