Columbia subject headings:
National characteristics, Puerto Rican.
Pedreira, Antonio S., 1898 or 1899-1939. Insularismo.
Puerto Rico--Civilization.
Harvard subject headings:
National characteristics, Puerto Rican.
Pedreira, Antonio S., 1898 or 1899-1939. Insularismo
Puerto Rico--Civilization.
Princeton subject headings:
National characteristics, Puerto Rican.
Pedreira, Antonio Salvador, 1899-1939. Insularismo.
Puerto Rico--Civilization.