APA (7th ed.) Citation

Lougheed, L. (2010). Barron's IELTS: International Language Testing System (2nd ed.). Barron's Educational Series, Inc.

Chicago Style (17th ed.) Citation

Lougheed, Lin. Barron's IELTS: International Language Testing System. 2nd ed. Hauppauge, N.Y: Barron's Educational Series, Inc, 2010.

MLA (9th ed.) Citation

Lougheed, Lin. Barron's IELTS: International Language Testing System. 2nd ed. Barron's Educational Series, Inc, 2010.