1.
図書 |
prepared by the International Commission of Mathematical Instruction (ICMI)
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2.
図書 |
edited by J. Phillipson
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3.
図書 |
International Association of Scientific Hydrology ; Unesco
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4.
図書 |
edited by P.E. Rijtema and H. Wassink
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5.
図書 |
[edited by] IASH-Unesco-WMO
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6.
図書 |
edited by P.E. Rijtema and H. Wassink
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7.
図書 |
International Association of Scientific Hydrology ; Unesco ; American Geophysical Union ; U.S. National Committee for the IHD ; University of Arizona
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