Columbia subject headings:
Costa Rica--Commerce--Periodicals.
Costa Rica--Commercial policy--Periodicals.
Foreign trade regulation--Costa Rica--Periodicals.
Harvard subject headings:
Costa Rica--Commerce--Periodicals.
Costa Rica--Commercial policy--Periodicals.
Foreign trade regulation--Costa Rica--Periodicals.
Princeton subject headings:
Costa Rica--Commerce--Periodicals.
Costa Rica--Commercial policy--Periodicals.
Foreign trade regulation--Costa Rica--Periodicals.
Periodicals.