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The Diatoms of the United States, Exclusive of Alaska and Hawaii: pt. 1. Entomoneidaceae, Cymbellaceae, Gomphonemaceae, Epithemiaceae

Ruth PatrickCharles W. Reimer

出版	Academy of Natural Sciences of Philadelphia, 1966
URL	http://books.google.com.hk/books?id=sEsVAQAAIAAJ&hl=&source=gbs_api