Cita APA (7th ed.)
National Research Bureau (Chicago, Ill.). The American salesman. National Research Bureau.
Cita Chicago (17th ed.)
National Research Bureau (Chicago, Ill.). The American Salesman. Burlington, Iowa: National Research Bureau.
Cita MLA (9th ed.)
National Research Bureau (Chicago, Ill.). The American Salesman. National Research Bureau.
Atenció: Aquestes cites poden no estar 100% correctes.