APA

Gairns R., Redman S., . (2008). Oxford Word Skills: Intermediate. Oxford: Oxford University Press.

Chicago

Gairns Ruth, Redman Stuart, . 2008. Oxford Word Skills: Intermediate. Oxford: Oxford University Press.

Harvard

Gairns R., Redman S., . (2008). Oxford Word Skills: Intermediate. Oxford: Oxford University Press.

MLA

Gairns Ruth, Redman Stuart, . Oxford Word Skills: Intermediate. Oxford: Oxford University Press. 2008.