Citação norma APA

Harrison, R. (2006). Headway (new) academic skills: Reading, writing, and study skills (student's book). Oxford: Oxford Univ. Press.

Citação norma Chicago

Harrison, Richard. Headway (new) Academic Skills: Reading, Writing, and Study Skills (student's Book). Oxford: Oxford Univ. Press, 2006.

Citação norma MLA

Harrison, Richard. Headway (new) Academic Skills: Reading, Writing, and Study Skills (student's Book). Oxford: Oxford Univ. Press, 2006.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.