1.
図書 |
[by] Gordon F. Bloom [and] Herbert R. Northrup
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2.
図書 |
Galenson, Walter, 1914-
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3.
図書 |
Stanley Lebergott
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4.
図書 |
Orme W. Phelps
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5.
図書 |
E.H. Phelps Brown
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6.
図書 |
by one of the idle classes (William Thompson)
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