Gamon, D. Building mental muscle: Conditioning exercises for the six intelligence zones. Viva Books.
Chicagoスタイル(17版)引用形式Gamon, David; Bragdon. Building Mental Muscle: Conditioning Exercises for the Six Intelligence Zones. Viva Books.
MLA(9版)引用形式Gamon, David; Bragdon. Building Mental Muscle: Conditioning Exercises for the Six Intelligence Zones. Viva Books.
警告: この引用は必ずしも正確ではありません.