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Relative variability in wheat yields across countries and over time
Singh, A. J., (1990)
[Besprechung von:] Green revolution? Technology and change in rice-growing areas of Tamil Nadu and Sri Lanka. Basingstoke/Hampshire 1977
Singh, A. J., (1978)
[Besprechung von:] Nadkarni, M. V.: Socialist agricultural price policy. A case study of GDR. New Delhi 1979
Singh, A. J., (1980)