Stern, R. D., & Dale, I. C. (1983). Statistical methods for tropical drought analysis based on rainfall data. WMO.
Chicago Style aipamenaStern, R. D., and I. C. Dale. Statistical Methods for Tropical Drought Analysis Based on Rainfall Data. [Geneva]: WMO, 1983.
MLA aipamenaStern, R. D., and I. C. Dale. Statistical Methods for Tropical Drought Analysis Based on Rainfall Data. WMO, 1983.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.