Negrón de Montilla, Aida. Americanization in Puerto Rico and the Public-School System : 1900-1930. / - Río Piedras : Editorial Universitaria, Universidad de Puerto Rico , 1975. - xvii, 282 p.: Originally presented as the author's thesis, New York University, 1971. Bibliography: p. 267-282. Subjects--Topical Terms: Education--History.--Puerto Rico LC Class. No.: LA501 / .N44 1975 Dewey Class. No.: 371/.01/097295