APA

Pavlik C., . (2012). Grammar sense 2A. Nueva York: Oxford University Press.

Chicago

Pavlik Cheryl, . 2012. Grammar sense 2A. Nueva York: Oxford University Press.

Harvard

Pavlik C., . (2012). Grammar sense 2A. Nueva York: Oxford University Press.

MLA

Pavlik Cheryl, . Grammar sense 2A. Nueva York: Oxford University Press. 2012.