Lougheed, L. (2003). 600 essential words for the TOEIC test: Test of English for international communication (2nd ed.). Barron's.
Chicago-referens (17:e uppl.)Lougheed, Lin. 600 Essential Words for the TOEIC Test: Test of English for International Communication. 2nd ed. Hauppauge, N.Y.: Barron's, 2003.
MLA-referens (8:e uppl.)Lougheed, Lin. 600 Essential Words for the TOEIC Test: Test of English for International Communication. 2nd ed. Barron's, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.