Sinunu, W. (2005). Life could be sweeter: 101 great ideas from around the world for living a more rewarding life. Marlowe and Company.
Chicagoスタイル(17版)引用形式Sinunu, William. Life Could Be Sweeter: 101 Great Ideas from Around the World for Living a More Rewarding Life. New York: Marlowe and Company, 2005.
MLA(9版)引用形式Sinunu, William. Life Could Be Sweeter: 101 Great Ideas from Around the World for Living a More Rewarding Life. Marlowe and Company, 2005.
警告: この引用は必ずしも正確ではありません.