Kettner, F. (1936). The need for a secretary of peace. Biosophical Institute.
Chicagoスタイル(17版)引用形式Kettner, Frederick. The Need for a Secretary of Peace. New York, N.Y.: Biosophical Institute, 1936.
MLA(8版)引用形式Kettner, Frederick. The Need for a Secretary of Peace. Biosophical Institute, 1936.
警告: この引用は必ずしも正確ではありません.