Palley, J. (2011). 31 High - Scoring Formulas to Answer the Ielts Speaking Questions. HCM: Tổng hợp.
Chicago-stil citatPalley, Jonathan. 31 High - Scoring Formulas to Answer the Ielts Speaking Questions. HCM: Tổng hợp, 2011.
MLA-referensPalley, Jonathan. 31 High - Scoring Formulas to Answer the Ielts Speaking Questions. HCM: Tổng hợp, 2011.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.