Não informado. (1961). Journal of the Mining College, Akita University. Akita Daigaku Kozangakubu.
Chicagoスタイル(17版)引用形式Não informado. Journal of the Mining College, Akita University. Akita, Japão: Akita Daigaku Kozangakubu, 1961.
MLA(8版)引用形式Não informado. Journal of the Mining College, Akita University. Akita Daigaku Kozangakubu, 1961.
警告: この引用は必ずしも正確ではありません.