English
Roses, Estelle Irizarry de.
English the laboratory way Estelle Roses de Irizarry. - Humacao, P.R. Colegio Regional de Humacao, Universidad de Puerto Rico 1965. - xiii, 97 p.
fel36001568
English language--Study and teaching.
English language--Phonetics.
Puerto Rico
English the laboratory way Estelle Roses de Irizarry. - Humacao, P.R. Colegio Regional de Humacao, Universidad de Puerto Rico 1965. - xiii, 97 p.
fel36001568
English language--Study and teaching.
English language--Phonetics.
Puerto Rico