Suzuki, K. (1941). Some non-marine shells from the Oligocene Isikari series in the Isikari coal-field, HokkaidÅ. Journal of the Faculty of Science, Imperial University of Tokyo, Section II. 6: 1-11.
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Suzuki, K.
1941
Some non-marine shells from the Oligocene Isikari series in the Isikari coal-field, HokkaidÅ
Journal of the Faculty of Science, Imperial University of Tokyo, Section II