Lefferts, W. (1924). Our country's leaders: And what they did for America. J.B. Lippincott Co..
Lua i Stíl Chicago (17ú heag.)Lefferts, Walter. Our Country's Leaders: And What They Did for America. Philadelphia : Chicago [etc.]: J.B. Lippincott Co., 1924.
Lua MLA (8ú heag.)Lefferts, Walter. Our Country's Leaders: And What They Did for America. J.B. Lippincott Co., 1924.
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