APA-čujuhus (7. p.)

Canal Stanford Online / YouTube. Donald Knuths Annual Christmas Tree Lecture, Planar Graphs and Ternary Trees.

Chicago-čujuhus (17. p.)

Canal Stanford Online / YouTube. Donald Knuths Annual Christmas Tree Lecture, Planar Graphs and Ternary Trees.

MLA-čujuhus (9. p.)

Canal Stanford Online / YouTube. Donald Knuths Annual Christmas Tree Lecture, Planar Graphs and Ternary Trees.

Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.