Ryder, J. Networks, Lines and Fields (2nd.).
Chicago-čujuhus (17. p.)Ryder, J.D. Networks, Lines and Fields. 2nd. New Delhi PHI-Learning 1997.
MLA-čujuhus (9. p.)Ryder, J.D. Networks, Lines and Fields. 2nd.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.