Kobayashi, T.; Suzuki, K. (1941). On the occurrence of Trigonioides in southeastern Manchoukuo. Bulletin of the Geological Institute of Manchoukuo. 101: 77-81.
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Kobayashi, T.; Suzuki, K.
1941
On the occurrence of <em>Trigonioides</em> in southeastern Manchoukuo
Bulletin of the Geological Institute of Manchoukuo