White, P., & Hayward, W. S. (1924). Marketing practice. Doubleday, Page & Co..
Chicagoスタイル(17版)引用形式White, Percival, , Walter Sumner Hayward. Marketing Practice. Garden City, N.Y.: Doubleday, Page & Co., 1924.
MLA(8版)引用形式White, Percival, , Walter Sumner Hayward. Marketing Practice. Doubleday, Page & Co., 1924.
警告: この引用は必ずしも正確ではありません.