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.