A phonological study of English as spoken by Puerto Ricans contrasted with Puerto Rican Spanish and American English - Jones, Morgan E. (Univ.Microfilms, 1968)
Xerokopie. - Phil.Diss.Ann Arbor (Univ.of Michigan) 1962
Keywords: Phonologie; Kontrastive Grammatik; Englisch; Spanisch; Puerto Rico; Hochschulschrift