APA (7th ed.) Citation

Schmitt, C. J., Woodford, P. E., Marshall, R. G., & Brenes, E. (1972). Espanol, a descubrirlo. Webster Division, McGraw-Hill.

Chicago Style (17th ed.) Citation

Schmitt, Conrad J., Protase E. Woodford, Randall G. Marshall, and Edin Brenes. Espanol, a Descubrirlo. New York: Webster Division, McGraw-Hill, 1972.

MLA (9th ed.) Citation

Schmitt, Conrad J., et al. Espanol, a Descubrirlo. Webster Division, McGraw-Hill, 1972.