Porter, R. P. (1911). The ten republics: An introduction to the South American series in Porter's progress of nations. With twelve maps (1a. ed.). George Routledge and sons, Ltd.
Chicago-čujuhus (17. p.)Porter, Robert P. The Ten Republics: An Introduction to the South American Series in Porter's Progress of Nations. With Twelve Maps. 1a. ed. Londres: George Routledge and sons, Ltd, 1911.
MLA-čujuhus (9. p.)Porter, Robert P. The Ten Republics: An Introduction to the South American Series in Porter's Progress of Nations. With Twelve Maps. 1a. ed. George Routledge and sons, Ltd, 1911.
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