DONALDSON C. (2000). TOOL DESIGN. TATA MC GRAW HILL.
Lua i Stíl Chicago (17ú heag.)DONALDSON C. TOOL DESIGN. TATA MC GRAW HILL, 2000.
Lua MLA (9ú heag.)DONALDSON C. TOOL DESIGN. TATA MC GRAW HILL, 2000.
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