Cita APA (7th ed.)

Jakeman, V., & Mcdowell, C. (2001). IELTS practice tests plus 1. Longman.

Cita Chicago (17th ed.)

Jakeman, Vanessa, i Clare Mcdowell. IELTS Practice Tests Plus 1. Harlow, [England]: Longman, 2001.

Cita MLA (8th ed.)

Jakeman, Vanessa, i Clare Mcdowell. IELTS Practice Tests Plus 1. Longman, 2001.