APA (7th ed.) Citation

Sarmiento, R., & Sánchez, A. (1996). Basic grammar of the spanish language. SGEL.

Chicago Style (17th ed.) Citation

Sarmiento, Ramón, and Aquilino Sánchez. Basic Grammar of the Spanish Language. Madrid: SGEL, 1996.

MLA (9th ed.) Citation

Sarmiento, Ramón, and Aquilino Sánchez. Basic Grammar of the Spanish Language. SGEL, 1996.

Warning: These citations may not always be 100% accurate.