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Control of Red Scale on Citrus Trees

P. C. HelyNew South Wales. Department of Agriculture. Entomological Branch

其他書名	By P. C. Hely and J. G. Gellatley
出版	Department of Agriculture, Entomological Branch, Division of Science Services, 1961
URL	http://books.google.com.hk/books?id=CQJ3PAAACAAJ&hl=&source=gbs_api