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john h yopp
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Symmetries in science IV
Bruno Gruber, John H. Yopp · Springer
248 sayfa · 1990
Congresses / Symmetry (Biology) / Molecular biology / Symétrie (biologie)
Determination of maximum permissible levels of selected chemicals that exert toxic effects on plants of economic importance in Illinois
John H. Yopp · The Institute
272 sayfa · 1974
Cultivated Plants / Effect of chemicals on / Effect of poisons on / Effect of pollution on / Plants
Bioassays and other special techniques for plant hormones and plant growth regulators
John H. Yopp, L. H. Aung, George L. Steffens · May be purchased from W.C. Wilson, Florida Dept. of Citrus
208 sayfa · 1986
Plant hormones / Plant bioassay / Plant regulators / Handbooks, manuals