Ramos, C. V., & Shapiro, R. Y. (2000). The effects of return migration on political participation in Puerto Rico. ProQuest LLC.
Lua i Stíl Chicago (17ú heag.)Ramos, Carlos Vargas, agus Robert Yale Shapiro. The Effects of Return Migration on Political Participation in Puerto Rico. Ann Arbor, Mi: ProQuest LLC, 2000.
Lua MLA (9ú heag.)Ramos, Carlos Vargas, agus Robert Yale Shapiro. The Effects of Return Migration on Political Participation in Puerto Rico. ProQuest LLC, 2000.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.