Não informado. (1921). Science reports of the Tohoku University. Tohoku University, Faculty of Science.
Chicagoスタイル(17版)引用形式Não informado. Science Reports of the Tohoku University. Sendai, Japão: Tohoku University, Faculty of Science, 1921.
MLA(8版)引用形式Não informado. Science Reports of the Tohoku University. Tohoku University, Faculty of Science, 1921.
警告: この引用は必ずしも正確ではありません.