Columbia subject headings:
Harvard subject headings:
Labor leaders--Spain--Biography.
Maurín, Joaquín, 1897-1973--Travel--New York (State)--New York.
Maurín, Joaquín, 1897-1973.
Socialists--Spain--Biography
Spain--Politics and government--20th century.
Princeton subject headings:
Labor leaders--Spain--Biography.
Maurín, Joaquín, 1897-1973--Travel--New York (State)--New York.
Maurín, Joaquín, 1897-1973.
Socialists--Spain--Biography.
Spain--Politics and government--20th century.