Hart, W. (1972). Study guide for agricultural pest control advisers on nematodes and nematicides. University of California.
Tohutoru Kātū Chicago (17th ed.)Hart, Winfield. Study Guide for Agricultural Pest Control Advisers on Nematodes and Nematicides. Berkeley: University of California, 1972.
Tohutoro MLA (9th ed.)Hart, Winfield. Study Guide for Agricultural Pest Control Advisers on Nematodes and Nematicides. University of California, 1972.
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