(1986). Unesco sourcebook for out-of school science and technology education. Unesco.
Chicago-čujuhus (17. p.)Unesco Sourcebook for Out-of School Science and Technology Education. Paris: Unesco, 1986.
MLA-čujuhus (9. p.)Unesco Sourcebook for Out-of School Science and Technology Education. Unesco, 1986.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.