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A Study of Growth and Nitrogen-fixation in Azolla Filiculoides Var. Rubra (R. Br.) Stasb. in Lake Ngahewa, New Zealand

Penelope Eve Kellar

出版	U. of Calif., Davis, 1978
URL	http://books.google.com.hk/books?id=-5wr9mvateMC&hl=&source=gbs_api