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Pyrethrum Investigations in Colorado
Charles B. GnadingerL. E. EvansC. S. Corl
其他書名
Preliminary report on factors affecting pyrethrin content. I
出版Colorado Agricultural College, Colorado Experiment Station, 1933
URLhttp://books.google.com.hk/books?id=lYsZxKBEclEC&hl=&source=gbs_api