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1كتاب
المؤلفون: Morse, W. J. (Warner Jackson), 1872-1931
المساهمون: U.S. Department of Agriculture, National Agricultural Library
مصطلحات موضوعية: Borax, Effect of boron on, Maine, Plants
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2
المؤلفون: Morse, W. J. (Warner Jackson), 1872-1931
المساهمون: U.S. Department of Agriculture, National Agricultural Library
مصطلحات موضوعية: Borax, Effect of boron on, Maine, Plants