Cita APA (7th ed.)

Rowland, V., & Birkett, K. (1992). Personal effectiveness for teachers. Simon and Schuster.

Cita Chicago (17th ed.)

Rowland, Val, i Ken Birkett. Personal Effectiveness for Teachers. Hertfordshire: Simon and Schuster, 1992.

Cita MLA (9th ed.)

Rowland, Val, i Ken Birkett. Personal Effectiveness for Teachers. Simon and Schuster, 1992.