Velázquez de la Cadena, M. (1967). A new pronouncing dictionary of the spanish and english languages. Appleton-Century-Crofts.

Velázquez de la Cadena, Mariano. A New Pronouncing Dictionary of the Spanish and English Languages. Nueva York: Appleton-Century-Crofts, 1967.

Velázquez de la Cadena, Mariano. A New Pronouncing Dictionary of the Spanish and English Languages. Appleton-Century-Crofts, 1967.