Dulan, S. (2007). GRE examination preparation. Pearson Education.
Chicago-čujuhus (17. p.)Dulan, Steven. GRE Examination Preparation. New Delhi: Pearson Education, 2007.
MLA-čujuhus (9. p.)Dulan, Steven. GRE Examination Preparation. Pearson Education, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.