Proctor, B. (2019). 12 Power Principles for Success. G & D Media.
Chicagoスタイル(17版)引用形式Proctor, Bob. 12 Power Principles for Success. New York: G & D Media, 2019.
MLA(9版)引用形式Proctor, Bob. 12 Power Principles for Success. G & D Media, 2019.
警告: この引用は必ずしも正確ではありません.