Citazione Stile APA (7a Edizione)

Kumar, R. (2014). Research Methodology A Step -by- Step Guide for Beginners (4th.). Sage.

Citazione stile Chigago Style (17a edizione)

Kumar, Ranjit. Research Methodology A Step -by- Step Guide for Beginners. 4th. New delhi: Sage, 2014.

Citatione MLA (9a ed.)

Kumar, Ranjit. Research Methodology A Step -by- Step Guide for Beginners. 4th. Sage, 2014.