Lua APA (7ú heag.)

Parasuraman, A. (2007). Marketing ResearchA.Parasuraman, Dhruv Grewal and R. Krishnan. Houghton Mifflin.

Lua i Stíl Chicago (17ú heag.)

Parasuraman, A. Marketing ResearchA.Parasuraman, Dhruv Grewal and R. Krishnan. Houghton Mifflin, 2007.

Lua MLA (8ú heag.)

Parasuraman, A. Marketing ResearchA.Parasuraman, Dhruv Grewal and R. Krishnan. Houghton Mifflin, 2007.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.