Columbia subject headings:
Ethnology--Mekong River Region.
Inland water transportation--Mekong River.
Mekong River Region--Boundaries.
Mekong River Region--Commerce.
Trade regulation--Burma.
Trade regulation--China.
Trade regulation--Laos.
Trade regulation--Thailand.
Harvard subject headings:
Boundaries--Mekong River Region.
Ethnology--Mekong River Region.
Inland water transportation--Mekong River.
Mekong River Region--Commerce.
Trade regulation--Burma.
Trade regulation--China
Trade regulation--Laos.
Trade regulation--Thailand.
Princeton subject headings:
Boundaries--Mekong River Region.
Ethnology--Mekong River Region.
Inland water transportation--Mekong River.
Mekong River Region--Commerce.
Trade regulation--Burma.
Trade regulation--China.
Trade regulation--Laos.
Trade regulation--Thailand.