Nystrom, J. W. (1864). Pocket-book of mechanics and engineering (Ed. 9.).
Lua i Stíl Chicago (17ú heag.)Nystrom, John W. Pocket-book of Mechanics and Engineering. Ed. 9. Philadelphia, 1864.
Lua MLA (8ú heag.)Nystrom, John W. Pocket-book of Mechanics and Engineering. Ed. 9. 1864.
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