Columbia subject headings:
Harvard subject headings:
Access to the sea (International law)--Bibliography.
Bolivia--Foreign relations--Chile--Bibliography.
Bolivia--Foreign relations--Peru--Bibliography.
Chile--Foreign relations--Bolivia--Bibliography.
Peru--Foreign relations--Bolivia--Bibliography.
Princeton subject headings:
Access to the sea (International law)--Bibliography--Union lists.
Bolivia--Relations--Chile--Bibliography--Union lists.
Bolivia--Relations--Peru--Bibliography--Union lists.
Chile--Relations--Bolivia--Bibliography--Union lists.
Peru--Relations--Bolivia--Bibliography--Union lists.
Union catalogs--Bolivia--La Paz.