OG Mandino. The Greatest Salesman InThe World With CD. Jaico Publishing House.
Chicagoスタイル(17版)引用形式OG Mandino. The Greatest Salesman InThe World With CD. Jaico Publishing House.
MLA(9版)引用形式OG Mandino. The Greatest Salesman InThe World With CD. Jaico Publishing House.
警告: この引用は必ずしも正確ではありません.