Cita APA (7th ed.)

Hansen, B. L. (1960). Work sampling for modern management. Prentice-Hall.

Cita Chicago (17th ed.)

Hansen, Bertrand L. Work Sampling for Modern Management. Englewood Cliffs, N. J.: Prentice-Hall, 1960.

Cita MLA (8th ed.)

Hansen, Bertrand L. Work Sampling for Modern Management. Prentice-Hall, 1960.