MCGRAW HILL. (1969). CHEMICAL ENGINEERING. MCGRAW HILL.
Lua i Stíl Chicago (17ú heag.)MCGRAW HILL. CHEMICAL ENGINEERING. NEW-YORK: MCGRAW HILL, 1969.
Lua MLA (9ú heag.)MCGRAW HILL. CHEMICAL ENGINEERING. MCGRAW HILL, 1969.
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