Gaya APA

Parasuraman, A.. (1991). Marketing research 2nd ed. (Ed. 2). USA: Addison-Wesley Publishing Company.

Gaya Chicago

Parasuraman, A.. Marketing research 2nd ed.. Ed. 2 USA: Addison-Wesley Publishing Company, 1991. Text.

Gaya MLA

Parasuraman, A.. Marketing research 2nd ed.. Ed. 2 USA: Addison-Wesley Publishing Company, 1991. Text.

Gaya Turabian

Parasuraman, A.. Marketing research 2nd ed.. Ed. 2 USA: Addison-Wesley Publishing Company, 1991. Print.