GENTRY GEORGE. (1978). HARDENING & TEMPERING ENGINEERS TOOLS. MODEL AND ALLIED.
Chicagoスタイル(17版)引用形式GENTRY GEORGE. HARDENING & TEMPERING ENGINEERS TOOLS. WATFORD: MODEL AND ALLIED, 1978.
MLA(9版)引用形式GENTRY GEORGE. HARDENING & TEMPERING ENGINEERS TOOLS. MODEL AND ALLIED, 1978.
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