Cita APA (7th ed.)
ebrary, Inc, & Cox, B. G. (1995). Business survey methods. Wiley.
Cita Chicago (17th ed.)
ebrary, Inc, i Brenda G. Cox. Business Survey Methods. New York: Wiley, 1995.
Cita MLA (9th ed.)
ebrary, Inc, i Brenda G. Cox. Business Survey Methods. Wiley, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.