Cita APA (7a ed.)

Kay, B. R., & Palmer, S. (1961). The challenge of supervision. McGraw-Hill.

Cita Chicago Style (17a ed.)

Kay, Brian R., y Stuart Palmer. The Challenge of Supervision. London: McGraw-Hill, 1961.

Cita MLA (8a ed.)

Kay, Brian R., y Stuart Palmer. The Challenge of Supervision. McGraw-Hill, 1961.