Hansen, Millard. 1958. «MARTIN B. DWORKIN (Ed.), The Impact of Puerto Rican Migration on Governmental Seroices in New York City, The Graduate School of Public Administration and Social Service, Nueva York: New York University Press, 1957. 74 págs». Revista De Ciencias Sociales, n.º 1 (marzo):108-10. https://revistas.upr.edu/index.php/rcs/article/view/10037.