Yabe, H.; Hanzawa, S. (1929), Tertiary foraminiferous rocks of the Philippines, Science Reports of the Tohoku University, Sendai (1927-1929), ser. 2, Geology 11:137-190.
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Yabe, H.; Hanzawa, S. (1929), Tertiary foraminiferous rocks of the Philippines, Science Reports of the Tohoku University, Sendai (1927-1929), ser. 2, Geology 11:137-190.
