Sangeetha & Damodar N Gujarati. (2011). Basic econometrics (4.). New Delhi.
Chicago Style aipamenaSangeetha and Damodar N Gujarati. Basic Econometrics. 4. New Delhi, 2011.
MLA aipamenaSangeetha and Damodar N Gujarati. Basic Econometrics. 4. New Delhi, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.