Ashton, T. (1948). Technique of breeding for drought resistance in crops. Commonwealth bureau of plant breeding and genetics, School of Agriuculture Cambridge.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিAshton, T. Technique of Breeding for Drought Resistance in Crops. England: Commonwealth bureau of plant breeding and genetics, School of Agriuculture Cambridge, 1948.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিAshton, T. Technique of Breeding for Drought Resistance in Crops. Commonwealth bureau of plant breeding and genetics, School of Agriuculture Cambridge, 1948.
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