Παραπομπή σε μορφή APA (7η εκδ.)

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.

Παραπομπή σε μορφή Chicago (17η εκδ.)

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.

Παραπομπή σε μορφή MLA (9th εκδ.)

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.