Chesterton, G. K. (1927). The secret of Father Brown. Harper & Brothers.
Lua i Stíl Chicago (17ú heag.)Chesterton, G. K. The Secret of Father Brown. New York ; London: Harper & Brothers, 1927.
Lua MLA (8ú heag.)Chesterton, G. K. The Secret of Father Brown. Harper & Brothers, 1927.
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