Columbia subject headings:
ETA (Organization)
Negotiation.
Official secrets--Spain--País Vasco.
Official secrets--Spain.
País Vasco (Spain)--Politics and government--20th century--Sources.
País Vasco (Spain)--Politics and government--20th century.
Spain--Politics and government--1975-1982--Sources.
Spain--Politics and government--1975-1982.
Harvard subject headings:
ETA (Organization)
Negotiation
Official secrets--Spain--País Vasco.
Official secrets--Spain.
País Vasco (Spain)--Politics and government--20th century--Sources.
País Vasco (Spain)--Politics and government--20th century.
Spain--Politics and government--1975-1982--Sources.
Spain--Politics and government--1975-1982.
Princeton subject headings: