Cita APA (7a ed.)

BarCharts, Inc. (2012). Spanish Grammar. BarCharts, Inc..

Cita Chicago Style (17a ed.)

BarCharts, Inc. Spanish Grammar. Boca Raton: BarCharts, Inc., 2012.

Cita MLA (8a ed.)

BarCharts, Inc. Spanish Grammar. BarCharts, Inc., 2012.