Columbia subject headings:
Export marketing--Mexico--Planning.
Export marketing--United States--Planning.
Green technology--Mexico.
Green technology--United States.
Harvard subject headings:
Export marketing--Mexico--Planning.
Export marketing--United States--Planning.
Green technology--Mexico.
Green technology--United States.
Princeton subject headings:
Export marketing--Mexico--Planning.
Export marketing--United States--Planning.
Green technology--Mexico.
Green technology--United States.