Gujarati, D. (1978). Basic econometrics (3.).
Chicago Style aipamenaGujarati, Damodar. Basic Econometrics. 3. McGraw-Hill Book Company, New York, 1978.
MLA aipamenaGujarati, Damodar. Basic Econometrics. 3. 1978.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.