SHUMAKER, T. M. (2004). Process pipe drafting. The Goodheart-Willcox Company.
Lua i Stíl Chicago (17ú heag.)SHUMAKER, Terence M. Process Pipe Drafting. Illinois: The Goodheart-Willcox Company, 2004.
Lua MLA (9ú heag.)SHUMAKER, Terence M. Process Pipe Drafting. The Goodheart-Willcox Company, 2004.
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