APA-čujuhus (7. p.)
Hassan Ugail. Partial Differential Equations for Geometric Design. Springer.
Chicago-čujuhus (17. p.)
Hassan Ugail. Partial Differential Equations for Geometric Design. Londres, Inglaterra: Springer.
MLA-čujuhus (9. p.)
Hassan Ugail. Partial Differential Equations for Geometric Design. Springer.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.