Cita APA (7a ed.)

ebrary, Inc, Ball, M. J., Crystal, D., & Fletcher, P. (2012). Assessing grammar: The languages of LARSP. Multilingual Matters.

Cita Chicago Style (17a ed.)

ebrary, Inc, Martin J. Ball, David Crystal, y Paul Fletcher. Assessing Grammar: The Languages of LARSP. Bristol: Multilingual Matters, 2012.

Cita MLA (9a ed.)

ebrary, Inc, et al. Assessing Grammar: The Languages of LARSP. Multilingual Matters, 2012.