Ridley, J. (2002). Safety with machinery. Butterworth- Heinemann.
シカゴスタイル引用形Ridley, John. Safety with Machinery. Oxford: Butterworth- Heinemann, 2002.
MLA引用形式Ridley, John. Safety with Machinery. Butterworth- Heinemann, 2002.
警告: この引用は必ずしも正確ではありません.