Columbia subject headings:
Engineering students, Foreign--United States--Statistics.
Engineers--Supply and demand--United States.
Science--Study and teaching (Higher)--United States.
Scientists--Supply and demand--United States.
Students, Foreign--United States--Statistics.
Harvard subject headings:
Engineers--Employment--United States--Statistics.
Scientists--Employment--United States--Statistics.
Students, Foreign--United States--Statistics.
Princeton subject headings: