1.
図書 |
International Dairy Congress ; International Dairy Federation
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2.
図書 |
International Dairy Federation
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3.
図書 |
rapporteur G. Wälzholz
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4.
図書 |
International Dairy Federation
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5.
図書 |
rapporteur J.B. Roos
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6.
図書 |
Edited by Jacques Casalis, Ernest John Mann [and] Max Erich Schulz, under the auspices of International Dairy Federation
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