Discrimination in education -- Puerto Rico : Machismo y educación en Puerto Rico / directora del estudio Isabel Picó ; personal de investigación Nora Marrero [and others]
Puerto Rico -- Economic conditions -- 1918-1952. : How did women needleworkers influence New Deal labor policies in Puerto Rico? / by Ivette Rivera-Guisti, under the direction of Thomas Dublin
Education, Bilingual -- Puerto Rico : The politics of language : the dilemma of bilingual education for Puerto Ricans / Pastora San Juan Cafferty and Carmen Rivera-Martínez
Puerto Rico Electric Power Authority. / http://id.loc.gov/authorities/names/n85087063 : Dark island : rebuilding Puerto Rico's grid / producers, Veda Shastri, James Glanz
Ethnohistory -- Puerto Rico : Ancient Borinquen : archaeology and ethnohistory of native Puerto Rico / edited by Peter E. Siegel
2005
1
Ethnology -- Puerto Rico -- History : Race and nation in Puerto Rican folklore : Franz Boas and John Alden Mason in Porto Rico / Rafael Ocasio
2020
1
Excavations (Archaeology) -- Puerto Rico : Caribbean paleodemography : population, culture history, and sociopolitical processes in ancient Puerto Rico / L. Antonio Curet
Explosions -- Puerto Rico -- San Juan : San Juan Gas Company Inc./Enron Corp. propane gas explosion in San Juan, Puerto Rico, on November 21, 1996 / by the National Transportation Safety Board
1997
1
Families -- Puerto Rico. : La vida : a Puerto Rican family in the culture of poverty - San Juan and New York / Oscar Lewis
Feminism -- Puerto Rico : Absolute equality : an early feminist perspective = Influencias de las ideas modernas / by = por Luisa Capetillo ; introduction and English translation by = traducción al inglés e introducción de Lara Walker
Fisheries -- Puerto Rico : Fishers at work, workers at sea : a Puerto Rican journey through labor and refuge / David Griffith and Manuel Valdés Pizzini