Roy, M. N. (1940). From savagery to civilisation. Digest Book House.
Lua i Stíl Chicago (17ú heag.)Roy, M. N. From Savagery to Civilisation. Calcutta: Digest Book House, 1940.
Lua MLA (8ú heag.)Roy, M. N. From Savagery to Civilisation. Digest Book House, 1940.
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