APA (7th ed.) Zitazioa

Gupta, S. K. (2011). Business research methodology: Methods, tools and techniques. Kalyani.

Chicago Style (17th ed.) Zitazioa

Gupta, Shashi K. Business Research Methodology: Methods, Tools and Techniques. New Delhi: Kalyani, 2011.

MLA (9th ed.) Zitazioa

Gupta, Shashi K. Business Research Methodology: Methods, Tools and Techniques. Kalyani, 2011.