Hall, A. R. (1888). Herbert Spencer on Sanitation by Competition.
シカゴスタイル引用形Hall, Alfred R. Herbert Spencer On Sanitation By Competition. 1888.
MLA引用形式Hall, Alfred R. Herbert Spencer On Sanitation By Competition. 1888.
警告: この引用は必ずしも正確ではありません.
APA引用形式