Gupta, S. (1993). Research Methodology and Statistical Techniques. Deep & Deep.
Chicago Style aipamenaGupta, Santosh. Research Methodology and Statistical Techniques. New Delhi: Deep & Deep, 1993.
MLA aipamenaGupta, Santosh. Research Methodology and Statistical Techniques. Deep & Deep, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.