Citazione APA

Gallagher, N. (2007). Delta’s key to the next generation TOEFL® test (Disk 6 - Test 6): Six practice tests for the iBT. McHenry, IL: Delta Pub. Co.

Stile di citazione Chicago

Gallagher, Nancy. Delta’s Key to the Next Generation TOEFL® Test (Disk 6 - Test 6): Six Practice Tests for the IBT. McHenry, IL: Delta Pub. Co, 2007.

Citazione MLA

Gallagher, Nancy. Delta’s Key to the Next Generation TOEFL® Test (Disk 6 - Test 6): Six Practice Tests for the IBT. McHenry, IL: Delta Pub. Co, 2007.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.