Hansen, B. L. (1960). Work sampling for modern management. Prentice-Hall.
芝加哥风格引文Hansen, Bertrand L. Work Sampling for Modern Management. Englewood Cliffs, N. J.: Prentice-Hall, 1960.
MLA引文Hansen, Bertrand L. Work Sampling for Modern Management. Prentice-Hall, 1960.
警告：这些引文格式不一定是100％准确.