Cita APA (7th ed.)

Parasuraman, A. (1991). Marketing research (2a. ed.). Addison-Wesley.

Cita Chicago (17th ed.)

Parasuraman, A. Marketing Research. 2a. ed. Reading: Addison-Wesley, 1991.

Cita MLA (9th ed.)

Parasuraman, A. Marketing Research. 2a. ed. Addison-Wesley, 1991.