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1923
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Boehlau Verlag Ges.m.b.H. & Co. KG, 1968
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Vandenhoeck & Ruprecht GmbH & Co, KG, 1962
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Vandenhoeck & Ruprecht GmbH & Co, KG, 1957
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Springer Science and Business Media LLC, 1934
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National Council of Teachers of Mathematics, 1927
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National Council of Teachers of Mathematics, 1927
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National Council of Teachers of Mathematics, 1960
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Springer Science and Business Media LLC, 1934