Ruiz Don Miguel. (1997). Four Agreements. Amber -Allen Publishing.
Chicagoスタイル(17版)引用形式Ruiz Don Miguel. Four Agreements. Amber -Allen Publishing, 1997.
MLA(9版)引用形式Ruiz Don Miguel. Four Agreements. Amber -Allen Publishing, 1997.
警告: この引用は必ずしも正確ではありません.