Gibbons, M. (1998). Higher education relevance in the 21st century. UNESCO.
Chicago-čujuhus (17. p.)Gibbons, Michael. Higher Education Relevance in the 21st Century. Francia: UNESCO, 1998.
MLA-čujuhus (9. p.)Gibbons, Michael. Higher Education Relevance in the 21st Century. UNESCO, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.