Peterson's. (2007). peterson's master toefl writing skills: Boost your toefl score! (First edition.). Peterson's.
Chicago-čujuhus (17. p.)Peterson's. Peterson's Master Toefl Writing Skills: Boost Your Toefl Score! First edition. Lawrenceville, NJ: Peterson's, 2007.
MLA-čujuhus (9. p.)Peterson's. Peterson's Master Toefl Writing Skills: Boost Your Toefl Score! First edition. Peterson's, 2007.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.