Kempner, T., & Wills, G. S. C. (1967). Bradford exercises in management 1-12. Nelson.
芝加哥风格引文Kempner, Thomas, 与 Gordon S. C. Wills. Bradford Exercises in Management 1-12. London: Nelson, 1967.
MLA引文Kempner, Thomas, 与 Gordon S. C. Wills. Bradford Exercises in Management 1-12. Nelson, 1967.
警告：这些引文格式不一定是100％准确.