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- [4] THE LINGUISTIC POLICY OF THE UNITED-STATES TOWARDS PUERTO-RICO BEITRAGE ZUR ROMANISCHEN PHILOLOGIE, 1983, 22 (02): : 317 - 320
- [5] MALARIA SURVEILLANCE IN UNITED-STATES AND PUERTO-RICO - 1970 JOURNAL OF INFECTIOUS DISEASES, 1972, 125 (02): : 194 - &
- [9] IUD INSERTION PRACTICES IN UNITED-STATES AND PUERTO-RICO, 1973 FAMILY PLANNING PERSPECTIVES, 1975, 7 (05): : 209 - 212