Duckworth, V., & Tummons, J. (2010). Contemporary issues in lifelong learning. McGraw-Hill : Open University Press.

Duckworth, Vicky, and Jonathan Tummons. Contemporary Issues in Lifelong Learning. Berkshire, England: McGraw-Hill : Open University Press, 2010.

Duckworth, Vicky, and Jonathan Tummons. Contemporary Issues in Lifelong Learning. McGraw-Hill : Open University Press, 2010.