English language services. (1967). Special English: Engineering: Civil and mechanical engineering. New York: MacMillan.
Trích dẫn kiểu ChicagoEnglish language services. Special English: Engineering: Civil and Mechanical Engineering. New York: MacMillan, 1967.
MLA citiranjeEnglish language services. Special English: Engineering: Civil and Mechanical Engineering. New York: MacMillan, 1967.
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