APA-čujuhus (7. p.)
Kolby, J. (2011). GRE 4000: The 4000 words essential for the GRE. Nova Press.
Chicago-čujuhus (17. p.)
Kolby, Jeff. GRE 4000: The 4000 Words Essential for the GRE. Los Angeles: Nova Press, 2011.
MLA-čujuhus (9. p.)
Kolby, Jeff. GRE 4000: The 4000 Words Essential for the GRE. Nova Press, 2011.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.