Cita APA (7a ed.)

Foley, M., & Hall, D. (2012). MyGrammarLab: Elementary A1/A2 : with key, suitable for self study. Pearson.

Cita Chicago Style (17a ed.)

Foley, Mark, y Diane Hall. MyGrammarLab: Elementary A1/A2 : With Key, Suitable for Self Study. England: Pearson, 2012.

Cita MLA (8a ed.)

Foley, Mark, y Diane Hall. MyGrammarLab: Elementary A1/A2 : With Key, Suitable for Self Study. Pearson, 2012.