APA-čujuhus (7. p.)
Qvortrup, L. Virtual Space: Spatiality in Virtual Inhabited 3D Worlds. Springer.
Chicago-čujuhus (17. p.)
Qvortrup, Lars. Virtual Space: Spatiality in Virtual Inhabited 3D Worlds. Londres, Inglaterra: Springer.
MLA-čujuhus (9. p.)
Qvortrup, Lars. Virtual Space: Spatiality in Virtual Inhabited 3D Worlds. Springer.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.