De V. Graaff, J. F. (1982). Youth movements in developing countries. [Dept. of Adult and Higher Education, University of Manchester].
Lua i Stíl Chicago (17ú heag.)De V. Graaff, J. F. Youth Movements in Developing Countries. [Manchester]: [Dept. of Adult and Higher Education, University of Manchester], 1982.
Lua MLA (8ú heag.)De V. Graaff, J. F. Youth Movements in Developing Countries. [Dept. of Adult and Higher Education, University of Manchester], 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.