Cita APA (7th ed.)
Seely, J. (2009). Oxford A-Z of grammar and punctuation (2nd ed.). Oxford University Press.
Cita Chicago (17th ed.)
Seely, John. Oxford A-Z of Grammar and Punctuation. 2nd ed. New York: Oxford University Press, 2009.
Cita MLA (9th ed.)
Seely, John. Oxford A-Z of Grammar and Punctuation. 2nd ed. Oxford University Press, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.