Cita APA (7th ed.)

Scales, P. (2011). Continuing professional development in the lifelong learning sector. Open University Press.

Cita Chicago (17th ed.)

Scales, Peter. Continuing Professional Development in the Lifelong Learning Sector. Berkshire, England: Open University Press, 2011.

Cita MLA (9th ed.)

Scales, Peter. Continuing Professional Development in the Lifelong Learning Sector. Open University Press, 2011.