Citazione Stile APA (7a Edizione)

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.

Citazione stile Chigago Style (17a edizione)

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.

Citatione MLA (9a ed.)

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.