Fliegel, F., Kivlin, J., & Roy, P. (1968). Two blades of grass: A summary of two studies on agricultural innovation in India. National Institute of Community development.
Styl ChicagoFliegel, Frederick, Joseph Kivlin, a Prodipto Roy. Two Blades of Grass: A Summary of Two Studies on Agricultural Innovation in India. Hyderabad: National Institute of Community development, 1968.
Citace podle MLAFliegel, Frederick, et al. Two Blades of Grass: A Summary of Two Studies on Agricultural Innovation in India. National Institute of Community development, 1968.
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