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    Symposium [on] weed control in tropical crops papers presented at the ninth Pest Control Council of the Philippines Conference commerating of the tenth anniversary of the Weed Scie...

    出版 1979
    图书

    Symposium [on] weed control in tropical crops papers presented at the ninth Pest Control Council of the Philippines Conference commerating of the tenth anniversary of the Weed Science Society of the Philippines, Inc., Philippine International Convention Center, Manila, May 3-6, 1978.

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