Cuyas, A. (1953). Appleton's revised English-Spanish and Spanish-English dictionary, containing more than one hundred and twenty thousand principal and subsidiary terms, with idioms and technical terms new pronouncing key and the fundamental tenses of irregular verbs (4th ed.). Appleton-Century-Crofts.

Cuyas, Arturo. Appleton's Revised English-Spanish and Spanish-English Dictionary, Containing More than One Hundred and Twenty Thousand Principal and Subsidiary Terms, with Idioms and Technical Terms New Pronouncing Key and the Fundamental Tenses of Irregular Verbs. 4th ed. New York: Appleton-Century-Crofts, 1953.

Cuyas, Arturo. Appleton's Revised English-Spanish and Spanish-English Dictionary, Containing More than One Hundred and Twenty Thousand Principal and Subsidiary Terms, with Idioms and Technical Terms New Pronouncing Key and the Fundamental Tenses of Irregular Verbs. 4th ed. Appleton-Century-Crofts, 1953.