Cita APA (7th ed.)
Roman, K., & Maas, J. How to advertise. St. Martin's Press.
Cita Chicago (17th ed.)
Roman, Kenneth, i Jane Maas. How to Advertise. 1976: St. Martin's Press.
Cita MLA (9th ed.)
Roman, Kenneth, i Jane Maas. How to Advertise. St. Martin's Press.
Atenció: Aquestes cites poden no estar 100% correctes.