APA-čujuhus (7. p.)
Scales, P. (2011). Continuing professional development in the lifelong learning sector. Open University Press.
Chicago-čujuhus (17. p.)
Scales, Peter. Continuing Professional Development in the Lifelong Learning Sector. Berkshire, England: Open University Press, 2011.
MLA-čujuhus (9. p.)
Scales, Peter. Continuing Professional Development in the Lifelong Learning Sector. Open University Press, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.