Ochs, D. A., & Ochs, G. L. (1997). The past and the presidents. Southern Pu. Ass.
Lua i Stíl Chicago (17ú heag.)Ochs, Daniel A., agus Grace Lilian Ochs. The Past and the Presidents. Nashville: Southern Pu. Ass, 1997.
Lua MLA (9ú heag.)Ochs, Daniel A., agus Grace Lilian Ochs. The Past and the Presidents. Southern Pu. Ass, 1997.
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