Hammerton, J. A., & Hammerton, J. A. (1925). The world's great books in outline. Amalgamated Press.
Lua i Stíl Chicago (17ú heag.)Hammerton, J. A., agus J. A. Hammerton. The World's Great Books in Outline. [Place of publication not identified]: Amalgamated Press, 1925.
Lua MLA (9ú heag.)Hammerton, J. A., agus J. A. Hammerton. The World's Great Books in Outline. Amalgamated Press, 1925.
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