Trautwine, J. C. (1916). Civil engineer's pocket-book (3d. 19th ed.). Trautwine.
Lua i Stíl Chicago (17ú heag.)Trautwine, John C. Civil Engineer's Pocket-book. 3d. 19th ed. Philadelphia: Trautwine, 1916.
Lua MLA (8ú heag.)Trautwine, John C. Civil Engineer's Pocket-book. 3d. 19th ed. Trautwine, 1916.
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