Ichikawa, W. (1967). Diatoms in the mammal-bearing sediments at Kanamori, Hanaizumi Town, Iwate Prefecture, Northeast Japan. Bulletin of the National Science Museum, 10(1): 39-89, pls 1-8
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Ichikawa, W.
1967
Diatoms in the mammal-bearing sediments at Kanamori, Hanaizumi Town, Iwate Prefecture, Northeast Japan