Stocking, George W., author
The Twentieth Century Fund, 1948
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Stocking, George W., author
The Twentieth Century Fund , 1949
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Machlup, Fritz, author
The Johns Hopkins Press, 1952
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Plummer, Alfred, author
Sir Isaac Pitman & Sons , 1951
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Adams, Walter, 1922-1998
Macmillan, 1957
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