Palmer, F. R. (1937). Tool steel simplified: A handbook of modern practice for the man who makes tools. The Carpenter steel company.
Chicago-viite (17. p.)Palmer, Frank R. Tool Steel Simplified: A Handbook of Modern Practice for the Man Who Makes Tools. Reading, Pa.,: The Carpenter steel company, 1937.
MLA-viite (8. p.)Palmer, Frank R. Tool Steel Simplified: A Handbook of Modern Practice for the Man Who Makes Tools. The Carpenter steel company, 1937.
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