This paper is an annotated bibliography on return migration from the mainland United States to Puerto Rico. An introduction defines the term "return migration" in the specific context of the Puerto Rican community. The introduction is followed by the bibliography, which lists and summarizes research studies and works dealing with demographic data and historical/philosophical information useful to those seeking to review the literature on return migration. Altogether, 63 works in Spanish and English are included and are listed alphabetically by author. The annotations vary in length from three lines to two or three paragraphs. (CG)