Charles Nunn & Ugo Papi. (1969). Economic Problems of Agriculture in Industrial Societies. Calcutta.
Dyfyniad Arddull ChicagoCharles Nunn and Ugo Papi. Economic Problems of Agriculture in Industrial Societies. Calcutta, 1969.
Dyfyniad MLACharles Nunn and Ugo Papi. Economic Problems of Agriculture in Industrial Societies. Calcutta, 1969.
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