Cita APA (7th ed.)

Jakeman, V., & McDowell, C. (2003). Cambridge practice tests for IELTS 1. Cambridge University Press.

Cita Chicago (17th ed.)

Jakeman, Vanessa, i Clare McDowell. Cambridge Practice Tests for IELTS 1. Cambridge: Cambridge University Press, 2003.

Cita MLA (8th ed.)

Jakeman, Vanessa, i Clare McDowell. Cambridge Practice Tests for IELTS 1. Cambridge University Press, 2003.