Cita APA

Yule, G. (2000). Explaining English grammar (2nd ed.). Oxford: Oxford U.P..

Citación estilo Chicago

Yule, George. Explaining English Grammar. 2nd ed. Oxford: Oxford U.P., 2000.

Cita MLA

Yule, George. Explaining English Grammar. 2nd ed. Oxford: Oxford U.P., 2000.