APA

Jakeman V., McDowell C., . (1999). Cambridge Practice Tests for IELTS 1. Cambridge: Cambridge University Press.

Chicago

Jakeman V, McDowell C, . 1999. Cambridge Practice Tests for IELTS 1. Cambridge: Cambridge University Press.

Harvard

Jakeman V., McDowell C., . (1999). Cambridge Practice Tests for IELTS 1. Cambridge: Cambridge University Press.

MLA

Jakeman V, McDowell C, . Cambridge Practice Tests for IELTS 1. Cambridge: Cambridge University Press. 1999.