YouTube. William McDonough, Cradle to Cradle Design.
Chicagoスタイル(17版)引用形式YouTube. William McDonough, Cradle to Cradle Design.
MLA(9版)引用形式YouTube. William McDonough, Cradle to Cradle Design.
警告: この引用は必ずしも正確ではありません.
APA(7版)引用形式