APA ציטוט

Purpura, J. E. (2013). Assessing grammar. Cambridge: Cambridge University Press.

Trích dẫn kiểu Chicago

Purpura, James E. Assessing Grammar. Cambridge: Cambridge University Press, 2013.

ציטוט MLA

Purpura, James E. Assessing Grammar. Cambridge: Cambridge University Press, 2013.