Belloc, H. (1910). The International: I. The Ferrer Case II. The Motive Force. Philadelphia.
Lua i Stíl Chicago (17ú heag.)Belloc, Hilaire. The International: I. The Ferrer Case II. The Motive Force. Philadelphia, 1910.
Lua MLA (8ú heag.)Belloc, Hilaire. The International: I. The Ferrer Case II. The Motive Force. Philadelphia, 1910.
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