APA
Velázquez de la Cadena M., Iribas J. L. & Gray E. (1948). A new pronouncing Dictionary of the Spanish and English Languages. Compiled by Mariano Velázquez de la Cadena and Edward Gray, Juan L. Iribas. With Supplement of New Words by Carlos Toral. Chicago: Wilcox.
Chicago
Velázquez de la Cadena Mariano, Iribas Juan L and Gray Edward. 1948. A new pronouncing Dictionary of the Spanish and English Languages. Compiled by Mariano Velázquez de la Cadena and Edward Gray, Juan L. Iribas. With Supplement of New Words by Carlos Toral. Chicago: Wilcox.
Harvard
Velázquez de la Cadena M., Iribas J. L. and Gray E. (1948). A new pronouncing Dictionary of the Spanish and English Languages. Compiled by Mariano Velázquez de la Cadena and Edward Gray, Juan L. Iribas. With Supplement of New Words by Carlos Toral. Chicago: Wilcox.
MLA
Velázquez de la Cadena Mariano, Iribas Juan L and Gray Edward. A new pronouncing Dictionary of the Spanish and English Languages. Compiled by Mariano Velázquez de la Cadena and Edward Gray, Juan L. Iribas. With Supplement of New Words by Carlos Toral. Chicago: Wilcox. 1948.