Cita APA (7th ed.)

Riggs, J. L. (1985). Productive supervision. Prentice-Hall.

Cita Chicago (17th ed.)

Riggs, James L. Productive Supervision. Englewood Cliffs, N.J: Prentice-Hall, 1985.

Cita MLA (9th ed.)

Riggs, James L. Productive Supervision. Prentice-Hall, 1985.