W.T. Frier, B. S.
mcGraw-Hill Company, 1952
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Rosenqvist, Terkel, author
McGraw-Hill, 1983
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Dennis, W.H
Sir Isaac Pitman & Sons, LTD, 1961
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Hirschhorn, Joel S., author
AmericanPowder Metallurgy Institute, 1969
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Hirschhorn, Joel S., author
AmericanPowder Metallurgy Institute, 1976
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